expose the instant app installer component

Bug: 35873804
Test: TreeHugger
Change-Id: I4d962927587bb10833bfe3c3db27fdceab668fc3
diff --git a/api/system-current.txt b/api/system-current.txt
index b0eb10d..e8bdeab 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -11237,6 +11237,7 @@
     method public abstract byte[] getInstantAppCookie();
     method public abstract int getInstantAppCookieMaxSize();
     method public abstract android.graphics.drawable.Drawable getInstantAppIcon(java.lang.String);
+    method public abstract android.content.ComponentName getInstantAppInstallerComponent();
     method public abstract android.content.ComponentName getInstantAppResolverSettingsComponent();
     method public abstract java.util.List<android.content.pm.InstantAppInfo> getInstantApps();
     method public abstract android.content.pm.InstrumentationInfo getInstrumentationInfo(android.content.ComponentName, int) throws android.content.pm.PackageManager.NameNotFoundException;
@@ -44499,6 +44500,7 @@
     method public byte[] getInstantAppCookie();
     method public int getInstantAppCookieMaxSize();
     method public android.graphics.drawable.Drawable getInstantAppIcon(java.lang.String);
+    method public android.content.ComponentName getInstantAppInstallerComponent();
     method public android.content.ComponentName getInstantAppResolverSettingsComponent();
     method public java.util.List<android.content.pm.InstantAppInfo> getInstantApps();
     method public android.content.pm.InstrumentationInfo getInstrumentationInfo(android.content.ComponentName, int) throws android.content.pm.PackageManager.NameNotFoundException;
diff --git a/core/java/android/app/ApplicationPackageManager.java b/core/java/android/app/ApplicationPackageManager.java
index a6838f8b..e07b7e4 100644
--- a/core/java/android/app/ApplicationPackageManager.java
+++ b/core/java/android/app/ApplicationPackageManager.java
@@ -2639,4 +2639,13 @@
             throw e.rethrowAsRuntimeException();
         }
     }
+
+    @Override
+    public ComponentName getInstantAppInstallerComponent() {
+        try {
+            return mPM.getInstantAppInstallerComponent();
+        } catch (RemoteException e) {
+            throw e.rethrowAsRuntimeException();
+        }
+    }
 }
diff --git a/core/java/android/content/pm/IPackageManager.aidl b/core/java/android/content/pm/IPackageManager.aidl
index 147df76..bbc942a 100644
--- a/core/java/android/content/pm/IPackageManager.aidl
+++ b/core/java/android/content/pm/IPackageManager.aidl
@@ -632,4 +632,6 @@
     void deletePreloadsFileCache();
 
     ComponentName getInstantAppResolverSettingsComponent();
+
+    ComponentName getInstantAppInstallerComponent();
 }
diff --git a/core/java/android/content/pm/PackageManager.java b/core/java/android/content/pm/PackageManager.java
index e5c8f0d..09906be 100644
--- a/core/java/android/content/pm/PackageManager.java
+++ b/core/java/android/content/pm/PackageManager.java
@@ -6275,9 +6275,19 @@
      * Return the {@link ComponentName} of the activity providing Settings for the Instant App
      * resolver.
      *
-     * @see {@link android.content.intent#ACTION_INSTANT_APP_RESOLVER_SETTINGS}
+     * @see {@link android.content.Intent#ACTION_INSTANT_APP_RESOLVER_SETTINGS}
      * @hide
      */
     @SystemApi
     public abstract ComponentName getInstantAppResolverSettingsComponent();
+
+    /**
+     * Return the {@link ComponentName} of the activity responsible for installing instant
+     * applications.
+     *
+     * @see {@link android.content.Intent#ACTION_INSTALL_INSTANT_APP_PACKAGE}
+     * @hide
+     */
+    @SystemApi
+    public abstract ComponentName getInstantAppInstallerComponent();
 }
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index 650d2f6..9040fcf 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -23636,4 +23636,10 @@
     public ComponentName getInstantAppResolverSettingsComponent() {
         return mInstantAppResolverSettingsComponent;
     }
+
+    @Override
+    public ComponentName getInstantAppInstallerComponent() {
+        return mInstantAppInstallerActivity == null
+                ? null : mInstantAppInstallerActivity.getComponentName();
+    }
 }
diff --git a/test-runner/src/android/test/mock/MockPackageManager.java b/test-runner/src/android/test/mock/MockPackageManager.java
index 960a2d9..20392e7 100644
--- a/test-runner/src/android/test/mock/MockPackageManager.java
+++ b/test-runner/src/android/test/mock/MockPackageManager.java
@@ -1126,4 +1126,12 @@
     public ComponentName getInstantAppResolverSettingsComponent() {
         throw new UnsupportedOperationException();
     }
+
+    /**
+     * @hide
+     */
+    @Override
+    public ComponentName getInstantAppInstallerComponent() {
+        throw new UnsupportedOperationException();
+    }
 }
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgePackageManager.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgePackageManager.java
index 5a239e1..ad26bc8 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgePackageManager.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgePackageManager.java
@@ -923,4 +923,9 @@
     public ComponentName getInstantAppResolverSettingsComponent() {
         return null;
     }
+
+    @Override
+    public ComponentName getInstantAppInstallerComponent() {
+        return null;
+    }
 }