Merge "Add parceling for DhcpServingParams"
diff --git a/config/hiddenapi-greylist.txt b/config/hiddenapi-greylist.txt
index caac8ae..0c561e6 100644
--- a/config/hiddenapi-greylist.txt
+++ b/config/hiddenapi-greylist.txt
@@ -2878,7 +2878,6 @@
 Lcom/android/internal/telephony/dataconnection/DataConnection;->mPhone:Lcom/android/internal/telephony/Phone;
 Lcom/android/internal/telephony/dataconnection/DataConnection;->mRilRat:I
 Lcom/android/internal/telephony/dataconnection/DataConnection;->notifyAllOfConnected(Ljava/lang/String;)V
-Lcom/android/internal/telephony/dataconnection/DataConnection;->notifyAllOfDisconnectDcRetrying(Ljava/lang/String;)V
 Lcom/android/internal/telephony/dataconnection/DataConnection;->notifyDisconnectCompleted(Lcom/android/internal/telephony/dataconnection/DataConnection$DisconnectParams;Z)V
 Lcom/android/internal/telephony/dataconnection/DataConnection;->onConnect(Lcom/android/internal/telephony/dataconnection/DataConnection$ConnectionParams;)V
 Lcom/android/internal/telephony/dataconnection/DataConnection;->tearDownData(Ljava/lang/Object;)V
@@ -2916,8 +2915,6 @@
 Lcom/android/internal/telephony/dataconnection/DcTracker;->mResolver:Landroid/content/ContentResolver;
 Lcom/android/internal/telephony/dataconnection/DcTracker;->mState:Lcom/android/internal/telephony/DctConstants$State;
 Lcom/android/internal/telephony/dataconnection/DcTracker;->mSubscriptionManager:Landroid/telephony/SubscriptionManager;
-Lcom/android/internal/telephony/dataconnection/DcTracker;->notifyDataConnection(Ljava/lang/String;)V
-Lcom/android/internal/telephony/dataconnection/DcTracker;->notifyOffApnsOfAvailability(Ljava/lang/String;)V
 Lcom/android/internal/telephony/dataconnection/DcTracker;->onActionIntentDataStallAlarm(Landroid/content/Intent;)V
 Lcom/android/internal/telephony/dataconnection/DcTracker;->onActionIntentProvisioningApnAlarm(Landroid/content/Intent;)V
 Lcom/android/internal/telephony/dataconnection/DcTracker;->onRecordsLoadedOrSubIdChanged()V
@@ -2946,7 +2943,6 @@
 Lcom/android/internal/telephony/DctConstants$State;->FAILED:Lcom/android/internal/telephony/DctConstants$State;
 Lcom/android/internal/telephony/DctConstants$State;->IDLE:Lcom/android/internal/telephony/DctConstants$State;
 Lcom/android/internal/telephony/DctConstants$State;->RETRYING:Lcom/android/internal/telephony/DctConstants$State;
-Lcom/android/internal/telephony/DctConstants$State;->SCANNING:Lcom/android/internal/telephony/DctConstants$State;
 Lcom/android/internal/telephony/DctConstants$State;->values()[Lcom/android/internal/telephony/DctConstants$State;
 Lcom/android/internal/telephony/DefaultPhoneNotifier;->mRegistry:Lcom/android/internal/telephony/ITelephonyRegistry;
 Lcom/android/internal/telephony/DriverCall$State;->ACTIVE:Lcom/android/internal/telephony/DriverCall$State;
@@ -3370,7 +3366,7 @@
 Lcom/android/internal/telephony/ITelephonyRegistry;->listen(Ljava/lang/String;Lcom/android/internal/telephony/IPhoneStateListener;IZ)V
 Lcom/android/internal/telephony/ITelephonyRegistry;->notifyCallState(ILjava/lang/String;)V
 Lcom/android/internal/telephony/ITelephonyRegistry;->notifyCellInfo(Ljava/util/List;)V
-Lcom/android/internal/telephony/ITelephonyRegistry;->notifyDataConnectionFailed(Ljava/lang/String;Ljava/lang/String;)V
+Lcom/android/internal/telephony/ITelephonyRegistry;->notifyDataConnectionFailed(Ljava/lang/String;)V
 Lcom/android/internal/telephony/IWapPushManager$Stub;->asInterface(Landroid/os/IBinder;)Lcom/android/internal/telephony/IWapPushManager;
 Lcom/android/internal/telephony/IWapPushManager;->addPackage(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;IZZ)Z
 Lcom/android/internal/telephony/IWapPushManager;->deletePackage(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Z
diff --git a/core/java/android/view/AccessibilityIterators.java b/core/java/android/view/AccessibilityIterators.java
index 9f7560c..54cfc00 100644
--- a/core/java/android/view/AccessibilityIterators.java
+++ b/core/java/android/view/AccessibilityIterators.java
@@ -147,6 +147,9 @@
         @Override
         public void onConfigurationChanged(Configuration globalConfig) {
             final Locale locale = globalConfig.getLocales().get(0);
+            if (locale == null) {
+                return;
+            }
             if (!mLocale.equals(locale)) {
                 mLocale = locale;
                 onLocaleChanged(locale);
diff --git a/libs/hwui/tests/common/scenes/BitmapFillrate.cpp b/libs/hwui/tests/common/scenes/BitmapFillrate.cpp
index 1d3d607..5af7d43 100644
--- a/libs/hwui/tests/common/scenes/BitmapFillrate.cpp
+++ b/libs/hwui/tests/common/scenes/BitmapFillrate.cpp
@@ -31,7 +31,7 @@
 
 class BitmapFillrate : public TestScene {
 public:
-    BitmapFillrate(BitmapAllocationTestUtils::BitmapAllocator allocator)
+    explicit BitmapFillrate(BitmapAllocationTestUtils::BitmapAllocator allocator)
             : TestScene(), mAllocator(allocator) {}
 
     void createContent(int width, int height, Canvas& canvas) override {
@@ -70,4 +70,4 @@
 
     BitmapAllocationTestUtils::BitmapAllocator mAllocator;
     std::vector<sp<RenderNode> > mNodes;
-};
\ No newline at end of file
+};
diff --git a/libs/hwui/tests/common/scenes/BitmapShaders.cpp b/libs/hwui/tests/common/scenes/BitmapShaders.cpp
index 15039b5..4ecb54c 100644
--- a/libs/hwui/tests/common/scenes/BitmapShaders.cpp
+++ b/libs/hwui/tests/common/scenes/BitmapShaders.cpp
@@ -26,7 +26,7 @@
 
 class BitmapShaders : public TestScene {
 public:
-    BitmapShaders(BitmapAllocationTestUtils::BitmapAllocator allocator)
+    explicit BitmapShaders(BitmapAllocationTestUtils::BitmapAllocator allocator)
             : TestScene(), mAllocator(allocator) {}
 
     sp<RenderNode> card;
diff --git a/libs/hwui/tests/common/scenes/TvApp.cpp b/libs/hwui/tests/common/scenes/TvApp.cpp
index a64e844..286f5f1 100644
--- a/libs/hwui/tests/common/scenes/TvApp.cpp
+++ b/libs/hwui/tests/common/scenes/TvApp.cpp
@@ -48,7 +48,7 @@
 
 class TvApp : public TestScene {
 public:
-    TvApp(BitmapAllocationTestUtils::BitmapAllocator allocator)
+    explicit TvApp(BitmapAllocationTestUtils::BitmapAllocator allocator)
             : TestScene(), mAllocator(allocator) {}
 
     sp<RenderNode> mBg;
@@ -232,7 +232,7 @@
 
 class TvAppNoRoundedCorner : public TvApp {
 public:
-    TvAppNoRoundedCorner(BitmapAllocationTestUtils::BitmapAllocator allocator) : TvApp(allocator) {}
+    explicit TvAppNoRoundedCorner(BitmapAllocationTestUtils::BitmapAllocator allocator) : TvApp(allocator) {}
 
 private:
     virtual float roundedCornerRadius() override { return dp(0); }
@@ -240,7 +240,7 @@
 
 class TvAppColorFilter : public TvApp {
 public:
-    TvAppColorFilter(BitmapAllocationTestUtils::BitmapAllocator allocator) : TvApp(allocator) {}
+    explicit TvAppColorFilter(BitmapAllocationTestUtils::BitmapAllocator allocator) : TvApp(allocator) {}
 
 private:
     virtual bool useOverlay() override { return false; }
@@ -248,7 +248,7 @@
 
 class TvAppNoRoundedCornerColorFilter : public TvApp {
 public:
-    TvAppNoRoundedCornerColorFilter(BitmapAllocationTestUtils::BitmapAllocator allocator)
+    explicit TvAppNoRoundedCornerColorFilter(BitmapAllocationTestUtils::BitmapAllocator allocator)
             : TvApp(allocator) {}
 
 private:
diff --git a/libs/hwui/tests/unit/SkiaRenderPropertiesTests.cpp b/libs/hwui/tests/unit/SkiaRenderPropertiesTests.cpp
index ad5fdac..7deb0b1 100644
--- a/libs/hwui/tests/unit/SkiaRenderPropertiesTests.cpp
+++ b/libs/hwui/tests/unit/SkiaRenderPropertiesTests.cpp
@@ -45,7 +45,7 @@
     static const int CANVAS_HEIGHT = 100;
     class PropertyTestCanvas : public TestCanvasBase {
     public:
-        PropertyTestCanvas(std::function<void(const SkCanvas&)> callback)
+        explicit PropertyTestCanvas(std::function<void(const SkCanvas&)> callback)
                 : TestCanvasBase(CANVAS_WIDTH, CANVAS_HEIGHT), mCallback(callback) {}
         void onDrawRect(const SkRect& rect, const SkPaint& paint) override {
             EXPECT_EQ(mDrawCounter++, 0);
diff --git a/libs/hwui/tests/unit/ThreadBaseTests.cpp b/libs/hwui/tests/unit/ThreadBaseTests.cpp
index 1168ff2..817c1f3 100644
--- a/libs/hwui/tests/unit/ThreadBaseTests.cpp
+++ b/libs/hwui/tests/unit/ThreadBaseTests.cpp
@@ -95,7 +95,7 @@
     };
 
     struct Counter {
-        Counter(EventCount* count) : mCount(count) { mCount->construct++; }
+        explicit Counter(EventCount* count) : mCount(count) { mCount->construct++; }
 
         Counter(const Counter& other) : mCount(other.mCount) {
             if (mCount) mCount->copy++;
@@ -148,4 +148,4 @@
     ASSERT_EQ(1, dummyObject->getStrongCount());
     ASSERT_EQ(2, lifecycleTestHelper(dummyObject));
     ASSERT_EQ(1, dummyObject->getStrongCount());
-}
\ No newline at end of file
+}
diff --git a/services/core/java/com/android/server/TelephonyRegistry.java b/services/core/java/com/android/server/TelephonyRegistry.java
index 190e99f..6d10632 100644
--- a/services/core/java/com/android/server/TelephonyRegistry.java
+++ b/services/core/java/com/android/server/TelephonyRegistry.java
@@ -1313,16 +1313,17 @@
         }
     }
 
-    public void notifyDataConnection(int state, boolean isDataAllowed,
-            String reason, String apn, String apnType, LinkProperties linkProperties,
-            NetworkCapabilities networkCapabilities, int networkType, boolean roaming) {
+    public void notifyDataConnection(int state, boolean isDataAllowed, String apn, String apnType,
+                                     LinkProperties linkProperties,
+                                     NetworkCapabilities networkCapabilities, int networkType,
+                                     boolean roaming) {
         notifyDataConnectionForSubscriber(SubscriptionManager.DEFAULT_SUBSCRIPTION_ID, state,
-            isDataAllowed,reason, apn, apnType, linkProperties,
-            networkCapabilities, networkType, roaming);
+                isDataAllowed, apn, apnType, linkProperties,
+                networkCapabilities, networkType, roaming);
     }
 
-    public void notifyDataConnectionForSubscriber(int subId, int state,
-            boolean isDataAllowed, String reason, String apn, String apnType,
+    public void notifyDataConnectionForSubscriber(int subId, int state, boolean isDataAllowed,
+                                                  String apn, String apnType,
             LinkProperties linkProperties, NetworkCapabilities networkCapabilities,
             int networkType, boolean roaming) {
         if (!checkNotifyPermission("notifyDataConnection()" )) {
@@ -1331,7 +1332,6 @@
         if (VDBG) {
             log("notifyDataConnectionForSubscriber: subId=" + subId
                 + " state=" + state + " isDataAllowed=" + isDataAllowed
-                + " reason='" + reason
                 + "' apn='" + apn + "' apnType=" + apnType + " networkType=" + networkType
                 + " mRecords.size()=" + mRecords.size());
         }
@@ -1366,7 +1366,7 @@
                     mDataConnectionNetworkType[phoneId] = networkType;
                 }
                 mPreciseDataConnectionState = new PreciseDataConnectionState(state, networkType,
-                        apnType, apn, reason, linkProperties, "");
+                        apnType, apn, linkProperties, "");
                 for (Record r : mRecords) {
                     if (r.matchPhoneStateListenerEvent(
                             PhoneStateListener.LISTEN_PRECISE_DATA_CONNECTION_STATE)) {
@@ -1381,30 +1381,29 @@
             }
             handleRemoveListLocked();
         }
-        broadcastDataConnectionStateChanged(state, isDataAllowed, reason, apn,
-                apnType, linkProperties, networkCapabilities, roaming, subId);
-        broadcastPreciseDataConnectionStateChanged(state, networkType, apnType, apn, reason,
+        broadcastDataConnectionStateChanged(state, isDataAllowed, apn, apnType, linkProperties,
+                networkCapabilities, roaming, subId);
+        broadcastPreciseDataConnectionStateChanged(state, networkType, apnType, apn,
                 linkProperties, "");
     }
 
-    public void notifyDataConnectionFailed(String reason, String apnType) {
+    public void notifyDataConnectionFailed(String apnType) {
          notifyDataConnectionFailedForSubscriber(SubscriptionManager.DEFAULT_SUBSCRIPTION_ID,
-                 reason, apnType);
+                 apnType);
     }
 
-    public void notifyDataConnectionFailedForSubscriber(int subId,
-            String reason, String apnType) {
+    public void notifyDataConnectionFailedForSubscriber(int subId, String apnType) {
         if (!checkNotifyPermission("notifyDataConnectionFailed()")) {
             return;
         }
         if (VDBG) {
             log("notifyDataConnectionFailedForSubscriber: subId=" + subId
-                + " reason=" + reason + " apnType=" + apnType);
+                    + " apnType=" + apnType);
         }
         synchronized (mRecords) {
             mPreciseDataConnectionState = new PreciseDataConnectionState(
                     TelephonyManager.DATA_UNKNOWN,TelephonyManager.NETWORK_TYPE_UNKNOWN,
-                    apnType, "", reason, null, "");
+                    apnType, "", null, "");
             for (Record r : mRecords) {
                 if (r.matchPhoneStateListenerEvent(
                         PhoneStateListener.LISTEN_PRECISE_DATA_CONNECTION_STATE)) {
@@ -1417,9 +1416,9 @@
             }
             handleRemoveListLocked();
         }
-        broadcastDataConnectionFailed(reason, apnType, subId);
+        broadcastDataConnectionFailed(apnType, subId);
         broadcastPreciseDataConnectionStateChanged(TelephonyManager.DATA_UNKNOWN,
-                TelephonyManager.NETWORK_TYPE_UNKNOWN, apnType, "", reason, null, "");
+                TelephonyManager.NETWORK_TYPE_UNKNOWN, apnType, "", null, "");
     }
 
     public void notifyCellLocation(Bundle cellLocation) {
@@ -1529,15 +1528,14 @@
         }
     }
 
-    public void notifyPreciseDataConnectionFailed(String reason, String apnType,
-            String apn, String failCause) {
+    public void notifyPreciseDataConnectionFailed(String apnType, String apn, String failCause) {
         if (!checkNotifyPermission("notifyPreciseDataConnectionFailed()")) {
             return;
         }
         synchronized (mRecords) {
             mPreciseDataConnectionState = new PreciseDataConnectionState(
                     TelephonyManager.DATA_UNKNOWN, TelephonyManager.NETWORK_TYPE_UNKNOWN,
-                    apnType, apn, reason, null, failCause);
+                    apnType, apn, null, failCause);
             for (Record r : mRecords) {
                 if (r.matchPhoneStateListenerEvent(
                         PhoneStateListener.LISTEN_PRECISE_DATA_CONNECTION_STATE)) {
@@ -1551,7 +1549,7 @@
             handleRemoveListLocked();
         }
         broadcastPreciseDataConnectionStateChanged(TelephonyManager.DATA_UNKNOWN,
-                TelephonyManager.NETWORK_TYPE_UNKNOWN, apnType, apn, reason, null, failCause);
+                TelephonyManager.NETWORK_TYPE_UNKNOWN, apnType, apn, null, failCause);
     }
 
     @Override
@@ -1882,10 +1880,10 @@
                         android.Manifest.permission.READ_CALL_LOG});
     }
 
-    private void broadcastDataConnectionStateChanged(int state,
-            boolean isDataAllowed,
-            String reason, String apn, String apnType, LinkProperties linkProperties,
-            NetworkCapabilities networkCapabilities, boolean roaming, int subId) {
+    private void broadcastDataConnectionStateChanged(int state, boolean isDataAllowed, String apn,
+                                                     String apnType, LinkProperties linkProperties,
+                                                     NetworkCapabilities networkCapabilities,
+                                                     boolean roaming, int subId) {
         // Note: not reporting to the battery stats service here, because the
         // status bar takes care of that after taking into account all of the
         // required info.
@@ -1895,9 +1893,6 @@
         if (!isDataAllowed) {
             intent.putExtra(PhoneConstants.NETWORK_UNAVAILABLE_KEY, true);
         }
-        if (reason != null) {
-            intent.putExtra(PhoneConstants.STATE_CHANGE_REASON_KEY, reason);
-        }
         if (linkProperties != null) {
             intent.putExtra(PhoneConstants.DATA_LINK_PROPERTIES_KEY, linkProperties);
             String iface = linkProperties.getInterfaceName();
@@ -1916,17 +1911,15 @@
         mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL);
     }
 
-    private void broadcastDataConnectionFailed(String reason, String apnType,
-            int subId) {
+    private void broadcastDataConnectionFailed(String apnType, int subId) {
         Intent intent = new Intent(TelephonyIntents.ACTION_DATA_CONNECTION_FAILED);
-        intent.putExtra(PhoneConstants.FAILURE_REASON_KEY, reason);
         intent.putExtra(PhoneConstants.DATA_APN_TYPE_KEY, apnType);
         intent.putExtra(PhoneConstants.SUBSCRIPTION_KEY, subId);
         mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL);
     }
 
     private void broadcastPreciseCallStateChanged(int ringingCallState, int foregroundCallState,
-            int backgroundCallState) {
+                                                  int backgroundCallState) {
         Intent intent = new Intent(TelephonyManager.ACTION_PRECISE_CALL_STATE_CHANGED);
         intent.putExtra(TelephonyManager.EXTRA_RINGING_CALL_STATE, ringingCallState);
         intent.putExtra(TelephonyManager.EXTRA_FOREGROUND_CALL_STATE, foregroundCallState);
@@ -1936,16 +1929,16 @@
     }
 
     private void broadcastPreciseDataConnectionStateChanged(int state, int networkType,
-            String apnType, String apn, String reason, LinkProperties linkProperties,
-            String failCause) {
+                                                            String apnType, String apn,
+                                                            LinkProperties linkProperties,
+                                                            String failCause) {
         Intent intent = new Intent(TelephonyManager.ACTION_PRECISE_DATA_CONNECTION_STATE_CHANGED);
         intent.putExtra(PhoneConstants.STATE_KEY, state);
         intent.putExtra(PhoneConstants.DATA_NETWORK_TYPE_KEY, networkType);
-        if (reason != null) intent.putExtra(PhoneConstants.STATE_CHANGE_REASON_KEY, reason);
         if (apnType != null) intent.putExtra(PhoneConstants.DATA_APN_TYPE_KEY, apnType);
         if (apn != null) intent.putExtra(PhoneConstants.DATA_APN_KEY, apn);
         if (linkProperties != null) {
-            intent.putExtra(PhoneConstants.DATA_LINK_PROPERTIES_KEY,linkProperties);
+            intent.putExtra(PhoneConstants.DATA_LINK_PROPERTIES_KEY, linkProperties);
         }
         if (failCause != null) intent.putExtra(PhoneConstants.DATA_FAILURE_CAUSE_KEY, failCause);
 
diff --git a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
index 9fa42ab..e539ffd 100644
--- a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
+++ b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
@@ -270,14 +270,12 @@
  * enforcement.
  *
  * <p>
- * This class uses 2-3 locks to synchronize state:
+ * This class uses 2 locks to synchronize state:
  * <ul>
  * <li>{@code mUidRulesFirstLock}: used to guard state related to individual UIDs (such as firewall
  * rules).
  * <li>{@code mNetworkPoliciesSecondLock}: used to guard state related to network interfaces (such
  * as network policies).
- * <li>{@code allLocks}: not a "real" lock, but an indication (through @GuardedBy) that all locks
- * must be held.
  * </ul>
  *
  * <p>
@@ -419,7 +417,8 @@
     final Object mUidRulesFirstLock = new Object();
     final Object mNetworkPoliciesSecondLock = new Object();
 
-    @GuardedBy("allLocks") volatile boolean mSystemReady;
+    @GuardedBy({"mUidRulesFirstLock", "mNetworkPoliciesSecondLock"})
+    volatile boolean mSystemReady;
 
     @GuardedBy("mUidRulesFirstLock") volatile boolean mRestrictBackground;
     @GuardedBy("mUidRulesFirstLock") volatile boolean mRestrictPower;
@@ -545,7 +544,7 @@
 
     private final ServiceThread mUidEventThread;
 
-    @GuardedBy("allLocks")
+    @GuardedBy({"mUidRulesFirstLock", "mNetworkPoliciesSecondLock"})
     private final AtomicFile mPolicyFile;
 
     private final AppOpsManager mAppOps;
diff --git a/startop/view_compiler/Android.bp b/startop/view_compiler/Android.bp
index 91cec554..82056e9 100644
--- a/startop/view_compiler/Android.bp
+++ b/startop/view_compiler/Android.bp
@@ -34,6 +34,7 @@
     defaults: ["viewcompiler_defaults"],
     srcs: [
         "dex_builder.cc",
+        "dex_layout_compiler.cc",
         "java_lang_builder.cc",
         "tinyxml_layout_parser.cc",
         "util.cc",
diff --git a/startop/view_compiler/dex_builder_test/Android.bp b/startop/view_compiler/dex_builder_test/Android.bp
index 4449ea0..d4f38ed 100644
--- a/startop/view_compiler/dex_builder_test/Android.bp
+++ b/startop/view_compiler/dex_builder_test/Android.bp
@@ -14,16 +14,30 @@
 // limitations under the License.
 //
 
+genrule {
+    name: "generate_compiled_layout",
+    tools: [":viewcompiler"],
+    cmd: "$(location :viewcompiler) $(in) --dex --out $(out) --package android.startop.test",
+    srcs: ["res/layout/layout1.xml"],
+    out: [
+        "layout1.dex",
+    ],
+}
+
 android_test {
     name: "dex-builder-test",
-    srcs: ["src/android/startop/test/DexBuilderTest.java"],
+    srcs: [
+        "src/android/startop/test/DexBuilderTest.java",
+        "src/android/startop/test/LayoutCompilerTest.java",
+    ],
     sdk_version: "current",
-    data: [":generate_dex_testcases"],
+    data: [":generate_dex_testcases", ":generate_compiled_layout"],
     static_libs: [
         "android-support-test",
         "guava",
     ],
     manifest: "AndroidManifest.xml",
+    resource_dirs: ["res"],
     test_config: "AndroidTest.xml",
     test_suites: ["general-tests"],
 }
diff --git a/startop/view_compiler/dex_builder_test/AndroidTest.xml b/startop/view_compiler/dex_builder_test/AndroidTest.xml
index 6f90cf3..68d8fdc 100644
--- a/startop/view_compiler/dex_builder_test/AndroidTest.xml
+++ b/startop/view_compiler/dex_builder_test/AndroidTest.xml
@@ -25,6 +25,7 @@
         <option name="cleanup" value="true" />
         <option name="push" value="trivial.dex->/data/local/tmp/dex-builder-test/trivial.dex" />
         <option name="push" value="simple.dex->/data/local/tmp/dex-builder-test/simple.dex" />
+        <option name="push" value="layout1.dex->/data/local/tmp/dex-builder-test/layout1.dex" />
     </target_preparer>
 
     <test class="com.android.tradefed.testtype.AndroidJUnitTest" >
diff --git a/startop/view_compiler/dex_builder_test/res/layout/layout1.xml b/startop/view_compiler/dex_builder_test/res/layout/layout1.xml
new file mode 100644
index 0000000..0f9375c
--- /dev/null
+++ b/startop/view_compiler/dex_builder_test/res/layout/layout1.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+   android:layout_width="match_parent"
+   android:layout_height="match_parent"
+   android:paddingLeft="16dp"
+   android:paddingRight="16dp"
+   android:orientation="vertical"
+   android:gravity="center">
+
+    <Button
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"/>
+    <Button
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"/>
+
+ </LinearLayout>
diff --git a/startop/view_compiler/dex_builder_test/src/android/startop/test/LayoutCompilerTest.java b/startop/view_compiler/dex_builder_test/src/android/startop/test/LayoutCompilerTest.java
new file mode 100644
index 0000000..ce3ce83
--- /dev/null
+++ b/startop/view_compiler/dex_builder_test/src/android/startop/test/LayoutCompilerTest.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package android.startop.test;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.view.View;
+import com.google.common.io.ByteStreams;
+import dalvik.system.InMemoryDexClassLoader;
+import dalvik.system.PathClassLoader;
+import java.io.InputStream;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.nio.ByteBuffer;
+import org.junit.Assert;
+import org.junit.Test;
+
+// Adding tests here requires changes in several other places. See README.md in
+// the view_compiler directory for more information.
+public class LayoutCompilerTest {
+    static ClassLoader loadDexFile(String filename) throws Exception {
+        return new PathClassLoader("/data/local/tmp/dex-builder-test/" + filename,
+                ClassLoader.getSystemClassLoader());
+    }
+
+    @Test
+    public void loadAndInflaterLayout1() throws Exception {
+        ClassLoader dex_file = loadDexFile("layout1.dex");
+        Class compiled_view = dex_file.loadClass("android.startop.test.CompiledView");
+        Method layout1 = compiled_view.getMethod("layout1", Context.class, int.class);
+        Context context = InstrumentationRegistry.getTargetContext();
+        layout1.invoke(null, context, R.layout.layout1);
+    }
+}
diff --git a/startop/view_compiler/dex_layout_compiler.cc b/startop/view_compiler/dex_layout_compiler.cc
new file mode 100644
index 0000000..c68793d
--- /dev/null
+++ b/startop/view_compiler/dex_layout_compiler.cc
@@ -0,0 +1,226 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "dex_layout_compiler.h"
+#include "layout_validation.h"
+
+#include "android-base/stringprintf.h"
+
+namespace startop {
+
+using android::base::StringPrintf;
+
+void LayoutValidationVisitor::VisitStartTag(const std::u16string& name) {
+  if (0 == name.compare(u"merge")) {
+    message_ = "Merge tags are not supported";
+    can_compile_ = false;
+  }
+  if (0 == name.compare(u"include")) {
+    message_ = "Include tags are not supported";
+    can_compile_ = false;
+  }
+  if (0 == name.compare(u"view")) {
+    message_ = "View tags are not supported";
+    can_compile_ = false;
+  }
+  if (0 == name.compare(u"fragment")) {
+    message_ = "Fragment tags are not supported";
+    can_compile_ = false;
+  }
+}
+
+DexViewBuilder::DexViewBuilder(dex::MethodBuilder* method)
+    : method_{method},
+      context_{dex::Value::Parameter(0)},
+      resid_{dex::Value::Parameter(1)},
+      inflater_{method->MakeRegister()},
+      xml_{method->MakeRegister()},
+      attrs_{method->MakeRegister()},
+      classname_tmp_{method->MakeRegister()},
+      xml_next_{method->dex_file()->GetOrDeclareMethod(
+          dex::TypeDescriptor::FromClassname("android.content.res.XmlResourceParser"), "next",
+          dex::Prototype{dex::TypeDescriptor::Int()})},
+      try_create_view_{method->dex_file()->GetOrDeclareMethod(
+          dex::TypeDescriptor::FromClassname("android.view.LayoutInflater"), "tryCreateView",
+          dex::Prototype{dex::TypeDescriptor::FromClassname("android.view.View"),
+                         dex::TypeDescriptor::FromClassname("android.view.View"),
+                         dex::TypeDescriptor::FromClassname("java.lang.String"),
+                         dex::TypeDescriptor::FromClassname("android.content.Context"),
+                         dex::TypeDescriptor::FromClassname("android.util.AttributeSet")})},
+      generate_layout_params_{method->dex_file()->GetOrDeclareMethod(
+          dex::TypeDescriptor::FromClassname("android.view.ViewGroup"), "generateLayoutParams",
+          dex::Prototype{dex::TypeDescriptor::FromClassname("android.view.ViewGroup$LayoutParams"),
+                         dex::TypeDescriptor::FromClassname("android.util.AttributeSet")})},
+      add_view_{method->dex_file()->GetOrDeclareMethod(
+          dex::TypeDescriptor::FromClassname("android.view.ViewGroup"), "addView",
+          dex::Prototype{
+              dex::TypeDescriptor::Void(),
+              dex::TypeDescriptor::FromClassname("android.view.View"),
+              dex::TypeDescriptor::FromClassname("android.view.ViewGroup$LayoutParams")})},
+      // The register stack starts with one register, which will be null for the root view.
+      register_stack_{{method->MakeRegister()}} {}
+
+void DexViewBuilder::Start() {
+  dex::DexBuilder* const dex = method_->dex_file();
+
+  // LayoutInflater inflater = LayoutInflater.from(context);
+  auto layout_inflater_from = dex->GetOrDeclareMethod(
+      dex::TypeDescriptor::FromClassname("android.view.LayoutInflater"),
+      "from",
+      dex::Prototype{dex::TypeDescriptor::FromClassname("android.view.LayoutInflater"),
+                     dex::TypeDescriptor::FromClassname("android.content.Context")});
+  method_->AddInstruction(
+      dex::Instruction::InvokeStaticObject(layout_inflater_from.id, /*dest=*/inflater_, context_));
+
+  // Resources res = context.getResources();
+  auto context_type = dex::TypeDescriptor::FromClassname("android.content.Context");
+  auto resources_type = dex::TypeDescriptor::FromClassname("android.content.res.Resources");
+  auto get_resources =
+      dex->GetOrDeclareMethod(context_type, "getResources", dex::Prototype{resources_type});
+  method_->AddInstruction(dex::Instruction::InvokeVirtualObject(get_resources.id, xml_, context_));
+
+  // XmlResourceParser xml = res.getLayout(resid);
+  auto xml_resource_parser_type =
+      dex::TypeDescriptor::FromClassname("android.content.res.XmlResourceParser");
+  auto get_layout =
+      dex->GetOrDeclareMethod(resources_type,
+                              "getLayout",
+                              dex::Prototype{xml_resource_parser_type, dex::TypeDescriptor::Int()});
+  method_->AddInstruction(dex::Instruction::InvokeVirtualObject(get_layout.id, xml_, xml_, resid_));
+
+  // AttributeSet attrs = Xml.asAttributeSet(xml);
+  auto as_attribute_set = dex->GetOrDeclareMethod(
+      dex::TypeDescriptor::FromClassname("android.util.Xml"),
+      "asAttributeSet",
+      dex::Prototype{dex::TypeDescriptor::FromClassname("android.util.AttributeSet"),
+                     dex::TypeDescriptor::FromClassname("org.xmlpull.v1.XmlPullParser")});
+  method_->AddInstruction(dex::Instruction::InvokeStaticObject(as_attribute_set.id, attrs_, xml_));
+
+  // xml.next(); // start document
+  method_->AddInstruction(dex::Instruction::InvokeInterface(xml_next_.id, {}, xml_));
+}
+
+void DexViewBuilder::Finish() {}
+
+namespace {
+std::string ResolveName(const std::string& name) {
+  if (name == "View") return "android.view.View";
+  if (name == "ViewGroup") return "android.view.ViewGroup";
+  if (name.find(".") == std::string::npos) {
+    return StringPrintf("android.widget.%s", name.c_str());
+  }
+  return name;
+}
+}  // namespace
+
+void DexViewBuilder::StartView(const std::string& name, bool is_viewgroup) {
+  bool const is_root_view = view_stack_.empty();
+
+  // xml.next(); // start tag
+  method_->AddInstruction(dex::Instruction::InvokeInterface(xml_next_.id, {}, xml_));
+
+  dex::Value view = AcquireRegister();
+  // try to create the view using the factories
+  method_->BuildConstString(classname_tmp_,
+                            name);  // TODO: the need to fully qualify the classname
+  if (is_root_view) {
+    dex::Value null = AcquireRegister();
+    method_->BuildConst4(null, 0);
+    method_->AddInstruction(dex::Instruction::InvokeVirtualObject(
+        try_create_view_.id, view, inflater_, null, classname_tmp_, context_, attrs_));
+    ReleaseRegister();
+  } else {
+    method_->AddInstruction(dex::Instruction::InvokeVirtualObject(
+        try_create_view_.id, view, inflater_, GetCurrentView(), classname_tmp_, context_, attrs_));
+  }
+  auto label = method_->MakeLabel();
+  // branch if not null
+  method_->AddInstruction(
+      dex::Instruction::OpWithArgs(dex::Instruction::Op::kBranchNEqz, /*dest=*/{}, view, label));
+
+  // If null, create the class directly.
+  method_->BuildNew(view,
+                    dex::TypeDescriptor::FromClassname(ResolveName(name)),
+                    dex::Prototype{dex::TypeDescriptor::Void(),
+                                   dex::TypeDescriptor::FromClassname("android.content.Context"),
+                                   dex::TypeDescriptor::FromClassname("android.util.AttributeSet")},
+                    context_,
+                    attrs_);
+
+  method_->AddInstruction(
+      dex::Instruction::OpWithArgs(dex::Instruction::Op::kBindLabel, /*dest=*/{}, label));
+
+  if (is_viewgroup) {
+    // Cast to a ViewGroup so we can add children later.
+    const ir::Type* view_group_def = method_->dex_file()->GetOrAddType(
+        dex::TypeDescriptor::FromClassname("android.view.ViewGroup").descriptor());
+    method_->AddInstruction(dex::Instruction::Cast(view, dex::Value::Type(view_group_def->orig_index)));
+  }
+
+  if (!is_root_view) {
+    // layout_params = parent.generateLayoutParams(attrs);
+    dex::Value layout_params{AcquireRegister()};
+    method_->AddInstruction(dex::Instruction::InvokeVirtualObject(
+        generate_layout_params_.id, layout_params, GetCurrentView(), attrs_));
+    view_stack_.push_back({view, layout_params});
+  } else {
+    view_stack_.push_back({view, {}});
+  }
+}
+
+void DexViewBuilder::FinishView() {
+  if (view_stack_.size() == 1) {
+    method_->BuildReturn(GetCurrentView(), /*is_object=*/true);
+  } else {
+    // parent.add(view, layout_params)
+    method_->AddInstruction(dex::Instruction::InvokeVirtual(
+        add_view_.id, /*dest=*/{}, GetParentView(), GetCurrentView(), GetCurrentLayoutParams()));
+    // xml.next(); // end tag
+    method_->AddInstruction(dex::Instruction::InvokeInterface(xml_next_.id, {}, xml_));
+  }
+  PopViewStack();
+}
+
+dex::Value DexViewBuilder::AcquireRegister() {
+  top_register_++;
+  if (register_stack_.size() == top_register_) {
+    register_stack_.push_back(method_->MakeRegister());
+  }
+  return register_stack_[top_register_];
+}
+
+void DexViewBuilder::ReleaseRegister() { top_register_--; }
+
+dex::Value DexViewBuilder::GetCurrentView() const { return view_stack_.back().view; }
+dex::Value DexViewBuilder::GetCurrentLayoutParams() const {
+  return view_stack_.back().layout_params.value();
+}
+dex::Value DexViewBuilder::GetParentView() const {
+  return view_stack_[view_stack_.size() - 2].view;
+}
+
+void DexViewBuilder::PopViewStack() {
+  const auto& top = view_stack_.back();
+  // release the layout params if we have them
+  if (top.layout_params.has_value()) {
+    ReleaseRegister();
+  }
+  // Unconditionally release the view register.
+  ReleaseRegister();
+  view_stack_.pop_back();
+}
+
+}  // namespace startop
\ No newline at end of file
diff --git a/startop/view_compiler/dex_layout_compiler.h b/startop/view_compiler/dex_layout_compiler.h
new file mode 100644
index 0000000..170a1a6
--- /dev/null
+++ b/startop/view_compiler/dex_layout_compiler.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DEX_LAYOUT_COMPILER_H_
+#define DEX_LAYOUT_COMPILER_H_
+
+#include "dex_builder.h"
+
+#include <codecvt>
+#include <locale>
+#include <string>
+#include <vector>
+
+namespace startop {
+
+// This visitor does the actual view compilation, using a supplied builder.
+template <typename Builder>
+class LayoutCompilerVisitor {
+ public:
+  explicit LayoutCompilerVisitor(Builder* builder) : builder_{builder} {}
+
+  void VisitStartDocument() { builder_->Start(); }
+  void VisitEndDocument() { builder_->Finish(); }
+  void VisitStartTag(const std::u16string& name) {
+    parent_stack_.push_back(ViewEntry{
+        std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t>{}.to_bytes(name), {}});
+  }
+  void VisitEndTag() {
+    auto entry = parent_stack_.back();
+    parent_stack_.pop_back();
+
+    if (parent_stack_.empty()) {
+      GenerateCode(entry);
+    } else {
+      parent_stack_.back().children.push_back(entry);
+    }
+  }
+
+ private:
+  struct ViewEntry {
+    std::string name;
+    std::vector<ViewEntry> children;
+  };
+
+  void GenerateCode(const ViewEntry& view) {
+    builder_->StartView(view.name, !view.children.empty());
+    for (const auto& child : view.children) {
+      GenerateCode(child);
+    }
+    builder_->FinishView();
+  }
+
+  Builder* builder_;
+
+  std::vector<ViewEntry> parent_stack_;
+};
+
+class DexViewBuilder {
+ public:
+  DexViewBuilder(dex::MethodBuilder* method);
+
+  void Start();
+  void Finish();
+  void StartView(const std::string& name, bool is_viewgroup);
+  void FinishView();
+
+ private:
+  // Accessors for the stack of views that are under construction.
+  dex::Value AcquireRegister();
+  void ReleaseRegister();
+  dex::Value GetCurrentView() const;
+  dex::Value GetCurrentLayoutParams() const;
+  dex::Value GetParentView() const;
+  void PopViewStack();
+
+  dex::MethodBuilder* method_;
+
+  // Registers used for code generation
+  dex::Value const context_;
+  dex::Value const resid_;
+  const dex::Value inflater_;
+  const dex::Value xml_;
+  const dex::Value attrs_;
+  const dex::Value classname_tmp_;
+
+  const dex::MethodDeclData xml_next_;
+  const dex::MethodDeclData try_create_view_;
+  const dex::MethodDeclData generate_layout_params_;
+  const dex::MethodDeclData add_view_;
+
+  // used for keeping track of which registers are in use
+  size_t top_register_{0};
+  std::vector<dex::Value> register_stack_;
+
+  // Keep track of the views currently in progress.
+  struct ViewEntry {
+    dex::Value view;
+    std::optional<dex::Value> layout_params;
+  };
+  std::vector<ViewEntry> view_stack_;
+};
+
+}  // namespace startop
+
+#endif  // DEX_LAYOUT_COMPILER_H_
diff --git a/startop/view_compiler/java_lang_builder.cc b/startop/view_compiler/java_lang_builder.cc
index 0b8754f..920caee 100644
--- a/startop/view_compiler/java_lang_builder.cc
+++ b/startop/view_compiler/java_lang_builder.cc
@@ -67,7 +67,7 @@
           "}\n";     // end CompiledView
 }
 
-void JavaLangViewBuilder::StartView(const string& class_name) {
+void JavaLangViewBuilder::StartView(const string& class_name, bool /*is_viewgroup*/) {
   const string view_var = MakeVar("view");
   const string layout_var = MakeVar("layout");
   std::string parent = "null";
diff --git a/startop/view_compiler/java_lang_builder.h b/startop/view_compiler/java_lang_builder.h
index c8d20b2..69356d3 100644
--- a/startop/view_compiler/java_lang_builder.h
+++ b/startop/view_compiler/java_lang_builder.h
@@ -35,7 +35,7 @@
   void Finish() const;
 
   // Begin creating a view (i.e. process the opening tag)
-  void StartView(const std::string& class_name);
+  void StartView(const std::string& class_name, bool is_viewgroup);
   // Finish a view, after all of its child nodes have been processed.
   void FinishView();
 
diff --git a/startop/view_compiler/main.cc b/startop/view_compiler/main.cc
index 609bcf3..ae00187 100644
--- a/startop/view_compiler/main.cc
+++ b/startop/view_compiler/main.cc
@@ -16,8 +16,11 @@
 
 #include "gflags/gflags.h"
 
+#include "android-base/stringprintf.h"
 #include "dex_builder.h"
+#include "dex_layout_compiler.h"
 #include "java_lang_builder.h"
+#include "layout_validation.h"
 #include "tinyxml_layout_parser.h"
 #include "util.h"
 
@@ -32,6 +35,12 @@
 namespace {
 
 using namespace tinyxml2;
+using android::base::StringPrintf;
+using startop::dex::ClassBuilder;
+using startop::dex::DexBuilder;
+using startop::dex::MethodBuilder;
+using startop::dex::Prototype;
+using startop::dex::TypeDescriptor;
 using namespace startop::util;
 using std::string;
 
@@ -41,34 +50,44 @@
 DEFINE_string(out, kStdoutFilename, "Where to write the generated class");
 DEFINE_string(package, "", "The package name for the generated class (required)");
 
-class ViewCompilerXmlVisitor : public XMLVisitor {
+template <typename Visitor>
+class XmlVisitorAdapter : public XMLVisitor {
  public:
-  explicit ViewCompilerXmlVisitor(JavaLangViewBuilder* builder) : builder_(builder) {}
+  explicit XmlVisitorAdapter(Visitor* visitor) : visitor_{visitor} {}
 
   bool VisitEnter(const XMLDocument& /*doc*/) override {
-    builder_->Start();
+    visitor_->VisitStartDocument();
     return true;
   }
 
   bool VisitExit(const XMLDocument& /*doc*/) override {
-    builder_->Finish();
+    visitor_->VisitEndDocument();
     return true;
   }
 
   bool VisitEnter(const XMLElement& element, const XMLAttribute* /*firstAttribute*/) override {
-    builder_->StartView(element.Name());
+    visitor_->VisitStartTag(
+        std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t>{}.from_bytes(
+            element.Name()));
     return true;
   }
 
   bool VisitExit(const XMLElement& /*element*/) override {
-    builder_->FinishView();
+    visitor_->VisitEndTag();
     return true;
   }
 
  private:
-  JavaLangViewBuilder* builder_;
+  Visitor* visitor_;
 };
 
+template <typename Builder>
+void CompileLayout(XMLDocument* xml, Builder* builder) {
+  startop::LayoutCompilerVisitor visitor{builder};
+  XmlVisitorAdapter<decltype(visitor)> adapter{&visitor};
+  xml->Accept(&adapter);
+}
+
 }  // end namespace
 
 int main(int argc, char** argv) {
@@ -88,16 +107,8 @@
     return 1;
   }
 
-  if (FLAGS_dex) {
-    startop::dex::WriteTestDexFile("test.dex");
-    return 0;
-  }
-
   const char* const filename = argv[kFileNameParam];
-  const string layout_name = FindLayoutNameFromFilename(filename);
-
-  // We want to generate Java language code to inflate exactly this layout. This means
-  // generating code to walk the resource XML too.
+  const string layout_name = startop::util::FindLayoutNameFromFilename(filename);
 
   XMLDocument xml;
   xml.LoadFile(filename);
@@ -108,15 +119,34 @@
     return 1;
   }
 
+  const bool is_stdout = FLAGS_out == kStdoutFilename;
+
   std::ofstream outfile;
-  if (FLAGS_out != kStdoutFilename) {
+  if (!is_stdout) {
     outfile.open(FLAGS_out);
   }
-  JavaLangViewBuilder builder{
-      FLAGS_package, layout_name, FLAGS_out == kStdoutFilename ? std::cout : outfile};
 
-  ViewCompilerXmlVisitor visitor{&builder};
-  xml.Accept(&visitor);
+  if (FLAGS_dex) {
+    DexBuilder dex_file;
+    string class_name = StringPrintf("%s.CompiledView", FLAGS_package.c_str());
+    ClassBuilder compiled_view{dex_file.MakeClass(class_name)};
+    MethodBuilder method{compiled_view.CreateMethod(
+        layout_name,
+        Prototype{TypeDescriptor::FromClassname("android.view.View"),
+                  TypeDescriptor::FromClassname("android.content.Context"),
+                  TypeDescriptor::Int()})};
+    startop::DexViewBuilder builder{&method};
+    CompileLayout(&xml, &builder);
+    method.Encode();
 
+    slicer::MemView image{dex_file.CreateImage()};
+
+    (is_stdout ? std::cout : outfile).write(image.ptr<const char>(), image.size());
+  } else {
+    // Generate Java language output.
+    JavaLangViewBuilder builder{FLAGS_package, layout_name, is_stdout ? std::cout : outfile};
+
+    CompileLayout(&xml, &builder);
+  }
   return 0;
 }
diff --git a/telephony/java/android/telephony/PreciseDataConnectionState.java b/telephony/java/android/telephony/PreciseDataConnectionState.java
index b258f52..8373899 100644
--- a/telephony/java/android/telephony/PreciseDataConnectionState.java
+++ b/telephony/java/android/telephony/PreciseDataConnectionState.java
@@ -17,10 +17,11 @@
 package android.telephony;
 
 import android.annotation.UnsupportedAppUsage;
+import android.net.LinkProperties;
 import android.os.Parcel;
 import android.os.Parcelable;
-import android.telephony.TelephonyManager;
-import android.net.LinkProperties;
+
+import java.util.Objects;
 
 /**
  * Contains precise data connection state.
@@ -32,7 +33,6 @@
  *   <li>Network type of the connection.
  *   <li>APN type.
  *   <li>APN.
- *   <li>Data connection change reason.
  *   <li>The properties of the network link.
  *   <li>Data connection fail cause.
  * </ul>
@@ -45,7 +45,6 @@
     private int mNetworkType = TelephonyManager.NETWORK_TYPE_UNKNOWN;
     private String mAPNType = "";
     private String mAPN = "";
-    private String mReason = "";
     private LinkProperties mLinkProperties = null;
     private String mFailCause = "";
 
@@ -55,14 +54,12 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public PreciseDataConnectionState(int state, int networkType,
-            String apnType, String apn, String reason,
-            LinkProperties linkProperties, String failCause) {
+    public PreciseDataConnectionState(int state, int networkType, String apnType, String apn,
+                                      LinkProperties linkProperties, String failCause) {
         mState = state;
         mNetworkType = networkType;
         mAPNType = apnType;
         mAPN = apn;
-        mReason = reason;
         mLinkProperties = linkProperties;
         mFailCause = failCause;
     }
@@ -83,7 +80,6 @@
         mNetworkType = in.readInt();
         mAPNType = in.readString();
         mAPN = in.readString();
-        mReason = in.readString();
         mLinkProperties = (LinkProperties)in.readParcelable(null);
         mFailCause = in.readString();
     }
@@ -144,14 +140,6 @@
     }
 
     /**
-     * Get data connection change reason.
-     */
-    @UnsupportedAppUsage
-    public String getDataConnectionChangeReason() {
-        return mReason;
-    }
-
-    /**
      * Get the properties of the network link.
      */
     @UnsupportedAppUsage
@@ -178,7 +166,6 @@
         out.writeInt(mNetworkType);
         out.writeString(mAPNType);
         out.writeString(mAPN);
-        out.writeString(mReason);
         out.writeParcelable(mLinkProperties, flags);
         out.writeString(mFailCause);
     }
@@ -197,16 +184,7 @@
 
     @Override
     public int hashCode() {
-        final int prime = 31;
-        int result = 1;
-        result = prime * result + mState;
-        result = prime * result + mNetworkType;
-        result = prime * result + ((mAPNType == null) ? 0 : mAPNType.hashCode());
-        result = prime * result + ((mAPN == null) ? 0 : mAPN.hashCode());
-        result = prime * result + ((mReason == null) ? 0 : mReason.hashCode());
-        result = prime * result + ((mLinkProperties == null) ? 0 : mLinkProperties.hashCode());
-        result = prime * result + ((mFailCause == null) ? 0 : mFailCause.hashCode());
-        return result;
+        return Objects.hash(mState, mNetworkType, mAPNType, mAPN, mLinkProperties, mFailCause);
     }
 
     @Override
@@ -252,13 +230,6 @@
         if (mNetworkType != other.mNetworkType) {
             return false;
         }
-        if (mReason == null) {
-            if (other.mReason != null) {
-                return false;
-            }
-        } else if (!mReason.equals(other.mReason)) {
-            return false;
-        }
         if (mState != other.mState) {
             return false;
         }
@@ -273,7 +244,6 @@
         sb.append(", Network type: " + mNetworkType);
         sb.append(", APN type: " + mAPNType);
         sb.append(", APN: " + mAPN);
-        sb.append(", Change reason: " + mReason);
         sb.append(", Link properties: " + mLinkProperties);
         sb.append(", Fail cause: " + mFailCause);
 
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 2286ce2..739c80f 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -772,7 +772,6 @@
      * The {@link #EXTRA_DATA_NETWORK_TYPE} extra indicates the connection network type.
      * The {@link #EXTRA_DATA_APN_TYPE} extra indicates the APN type.
      * The {@link #EXTRA_DATA_APN} extra indicates the APN.
-     * The {@link #EXTRA_DATA_CHANGE_REASON} extra indicates the connection change reason.
      * The {@link #EXTRA_DATA_IFACE_PROPERTIES} extra indicates the connection interface.
      * The {@link #EXTRA_DATA_FAILURE_CAUSE} extra indicates the connection fail cause.
      *
@@ -783,7 +782,6 @@
      * @see #EXTRA_DATA_NETWORK_TYPE
      * @see #EXTRA_DATA_APN_TYPE
      * @see #EXTRA_DATA_APN
-     * @see #EXTRA_DATA_CHANGE_REASON
      * @see #EXTRA_DATA_IFACE
      * @see #EXTRA_DATA_FAILURE_CAUSE
      * @hide
@@ -872,18 +870,6 @@
 
     /**
      * The lookup key used with the {@link #ACTION_PRECISE_DATA_CONNECTION_STATE_CHANGED} broadcast
-     * for an String representation of the change reason.
-     *
-     * <p class="note">
-     * Retrieve with
-     * {@link android.content.Intent#getStringExtra(String name)}.
-     *
-     * @hide
-     */
-    public static final String EXTRA_DATA_CHANGE_REASON = PhoneConstants.STATE_CHANGE_REASON_KEY;
-
-    /**
-     * The lookup key used with the {@link #ACTION_PRECISE_DATA_CONNECTION_STATE_CHANGED} broadcast
      * for an String representation of the data interface.
      *
      * <p class="note">
diff --git a/telephony/java/com/android/internal/telephony/DctConstants.java b/telephony/java/com/android/internal/telephony/DctConstants.java
index 0fdca5d..96f7a1b 100644
--- a/telephony/java/com/android/internal/telephony/DctConstants.java
+++ b/telephony/java/com/android/internal/telephony/DctConstants.java
@@ -24,7 +24,7 @@
     /**
      * IDLE: ready to start data connection setup, default state
      * CONNECTING: state of issued startPppd() but not finish yet
-     * SCANNING: data connection fails with one apn but other apns are available
+     * RETRYING: data connection fails with one apn but other apns are available
      *           ready to start data connection on other apns (before INITING)
      * CONNECTED: IP connection is setup
      * DISCONNECTING: Connection.disconnect() has been called, but PDP
@@ -34,19 +34,16 @@
      *
      * getDataConnectionState() maps State to DataState
      *      FAILED or IDLE : DISCONNECTED
-     *      RETRYING or CONNECTING or SCANNING: CONNECTING
+     *      RETRYING or CONNECTING: CONNECTING
      *      CONNECTED : CONNECTED or DISCONNECTING
      */
     public enum State {
         IDLE,
         CONNECTING,
-        SCANNING,
+        RETRYING,
         CONNECTED,
         DISCONNECTING,
         FAILED,
-        RETRYING        // After moving retry manager to ApnContext, we'll never enter this state!
-                        // Todo: Remove this state and other places that use this state and then
-                        // rename SCANNING to RETRYING.
     }
 
     public enum Activity {
@@ -81,7 +78,6 @@
     public static final int EVENT_RESTART_RADIO = BASE + 26;
     public static final int EVENT_CLEAN_UP_ALL_CONNECTIONS = BASE + 29;
     public static final int EVENT_ICC_CHANGED = BASE + 33;
-    public static final int EVENT_DISCONNECT_DC_RETRYING = BASE + 34;
     public static final int EVENT_DATA_SETUP_COMPLETE_ERROR = BASE + 35;
     public static final int CMD_SET_ENABLE_FAIL_FAST_MOBILE_DATA = BASE + 36;
     public static final int CMD_ENABLE_MOBILE_PROVISIONING = BASE + 37;
diff --git a/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl b/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl
index d9f5c3f..02a6f31 100644
--- a/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl
@@ -50,13 +50,13 @@
     void notifyDataActivity(int state);
     void notifyDataActivityForSubscriber(in int subId, int state);
     void notifyDataConnection(int state, boolean isDataConnectivityPossible,
-            String reason, String apn, String apnType, in LinkProperties linkProperties,
+            String apn, String apnType, in LinkProperties linkProperties,
             in NetworkCapabilities networkCapabilities, int networkType, boolean roaming);
     void notifyDataConnectionForSubscriber(int subId, int state, boolean isDataConnectivityPossible,
-            String reason, String apn, String apnType, in LinkProperties linkProperties,
+            String apn, String apnType, in LinkProperties linkProperties,
             in NetworkCapabilities networkCapabilities, int networkType, boolean roaming);
-    void notifyDataConnectionFailed(String reason, String apnType);
-    void notifyDataConnectionFailedForSubscriber(int subId, String reason, String apnType);
+    void notifyDataConnectionFailed(String apnType);
+    void notifyDataConnectionFailedForSubscriber(int subId, String apnType);
     void notifyCellLocation(in Bundle cellLocation);
     void notifyCellLocationForSubscriber(in int subId, in Bundle cellLocation);
     void notifyOtaspChanged(in int otaspMode);
@@ -67,7 +67,7 @@
     void notifyPreciseCallState(int ringingCallState, int foregroundCallState,
             int backgroundCallState);
     void notifyDisconnectCause(int disconnectCause, int preciseDisconnectCause);
-    void notifyPreciseDataConnectionFailed(String reason, String apnType, String apn,
+    void notifyPreciseDataConnectionFailed(String apnType, String apn,
             String failCause);
     void notifyCellInfoForSubscriber(in int subId, in List<CellInfo> cellInfo);
     void notifySrvccStateChanged(in int subId, in int lteState);
diff --git a/telephony/java/com/android/internal/telephony/PhoneConstants.java b/telephony/java/com/android/internal/telephony/PhoneConstants.java
index 21f3b92..e87d28c 100644
--- a/telephony/java/com/android/internal/telephony/PhoneConstants.java
+++ b/telephony/java/com/android/internal/telephony/PhoneConstants.java
@@ -79,8 +79,6 @@
     public static final int SIM_ACTIVATION_TYPE_DATA = 1;
 
     public static final String PHONE_NAME_KEY = "phoneName";
-    public static final String FAILURE_REASON_KEY = "reason";
-    public static final String STATE_CHANGE_REASON_KEY = "reason";
     public static final String DATA_NETWORK_TYPE_KEY = "networkType";
     public static final String DATA_FAILURE_CAUSE_KEY = "failCause";
     public static final String DATA_APN_TYPE_KEY = "apnType";