Revert of [Android] Stop hiding the RWHV layer subtree when hiding the widget (patchset #12 id:3300…

content/shell/android/shell_apk/src/org/chromium/content_shell_apk/ContentShellActivity.java

Index: content/shell/android/shell_apk/src/org/chromium/content_shell_apk/ContentShellActivity.java
diff --git a/content/shell/android/shell_apk/src/org/chromium/content_shell_apk/ContentShellActivity.java b/content/shell/android/shell_apk/src/org/chromium/content_shell_apk/ContentShellActivity.java
index a5a94719881c94693f0bf2519877acd3a80b3075..bc460bf6d028469f4d529c9dfd83cecd28eae18b 100644
--- a/content/shell/android/shell_apk/src/org/chromium/content_shell_apk/ContentShellActivity.java
+++ b/content/shell/android/shell_apk/src/org/chromium/content_shell_apk/ContentShellActivity.java
@@ -71,8 +71,7 @@ public class ContentShellActivity extends Activity {
 
         setContentView(R.layout.content_shell_activity);
         mShellManager = (ShellManager) findViewById(R.id.shell_container);
-        final boolean listenToActivityState = true;
-        mWindowAndroid = new ActivityWindowAndroid(this, listenToActivityState);
+        mWindowAndroid = new ActivityWindowAndroid(this);
         mWindowAndroid.restoreInstanceState(savedInstanceState);
         mShellManager.setWindow(mWindowAndroid);
         // Set up the animation placeholder to be the SurfaceView. This disables the
@@ -184,6 +183,14 @@ public class ContentShellActivity extends Activity {
     }
 
     @Override
+    protected void onStop() {
+        super.onStop();
+
+        ContentViewCore contentViewCore = getActiveContentViewCore();
+        if (contentViewCore != null) contentViewCore.onHide();
+    }
+
+    @Override
     protected void onStart() {
         super.onStart();