commit f5dd7ccac262f244ccf5423a4fe8ed2437b6af6b
author Juho Ha <juhoha@google.com> Thu Jun 15 11:38:56 2017 +0900
committer Juho Ha <juhoha@google.com> Thu Jun 15 11:54:03 2017 +0900
tree 6b8c3648cb8ca1a1ae871dfe592aa0adb18fdbdc
parent 51a09a751381ed02bdf0703ed4672846567e2f04

Disabled task snapshot for IoT devices

Disable this function for IoT devices, since many of them
don't have the display and are running low on RAM.
Also, some IoT devices crash when taking snapshot.

Bug: 62182164
Test: System service does not crash when user app dies on IoT device
Change-Id: I4e1e8ef27e4e7e3525f0051349dc8bacd6436ba1

services/core/java/com/android/server/wm/TaskSnapshotController.java

diff --git a/services/core/java/com/android/server/wm/TaskSnapshotController.java b/services/core/java/com/android/server/wm/TaskSnapshotController.java
index bf8fabd..edb8853 100644
--- a/services/core/java/com/android/server/wm/TaskSnapshotController.java
+++ b/services/core/java/com/android/server/wm/TaskSnapshotController.java
@@ -92,11 +92,18 @@
      */
     private final boolean mIsRunningOnTv;
 
+    /**
+     * Flag indicating whether we are running on an IoT device.
+     */
+    private final boolean mIsRunningOnIoT;
+
     TaskSnapshotController(WindowManagerService service) {
         mService = service;
         mCache = new TaskSnapshotCache(mService, mLoader);
         mIsRunningOnTv = mService.mContext.getPackageManager().hasSystemFeature(
                 PackageManager.FEATURE_LEANBACK);
+        mIsRunningOnIoT = mService.mContext.getPackageManager().hasSystemFeature(
+                PackageManager.FEATURE_EMBEDDED);
     }
 
     void systemReady() {
@@ -194,7 +201,8 @@
     }
 
     private boolean shouldDisableSnapshots() {
-        return !ENABLE_TASK_SNAPSHOTS || ActivityManager.isLowRamDeviceStatic() || mIsRunningOnTv;
+        return !ENABLE_TASK_SNAPSHOTS || ActivityManager.isLowRamDeviceStatic()
+                || mIsRunningOnTv || mIsRunningOnIoT;
     }
 
     private Rect minRect(Rect rect1, Rect rect2) {