Work around instability of Display.getRotation().

Ensures that the navigation buttons are properly oriented
each time the screen comes on.

Bug: 7086018
Change-Id: Iac6243792a8c64001ff7409108fb892bd470e4c4

Author: dsandler

packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

@@ -451,6 +451,7 @@ public void onSizeChanged(View view, int w, int h, int oldw, int oldh) {
         filter.addAction(Intent.ACTION_CONFIGURATION_CHANGED);
         filter.addAction(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
         filter.addAction(Intent.ACTION_SCREEN_OFF);
+        filter.addAction(Intent.ACTION_SCREEN_ON);
         context.registerReceiver(mBroadcastReceiver, filter);
 
         return mStatusBarView;
@@ -788,11 +789,6 @@ public void removeNotification(IBinder key) {
         setAreThereNotifications();
     }
 
-    @Override
-    protected void onConfigurationChanged(Configuration newConfig) {
-        updateShowSearchHoldoff();
-    }
-
     private void updateShowSearchHoldoff() {
         mShowSearchHoldoff = mContext.getResources().getInteger(
             R.integer.config_show_search_delay);
@@ -1804,9 +1800,17 @@ else if (Intent.ACTION_SCREEN_OFF.equals(action)) {
                 makeExpandedInvisible();
             }
             else if (Intent.ACTION_CONFIGURATION_CHANGED.equals(action)) {
+                if (DEBUG) {
+                    Slog.v(TAG, "configuration changed: " + mContext.getResources().getConfiguration());
+                }
                 updateResources();
                 repositionNavigationBar();
                 updateExpandedViewPos(EXPANDED_LEAVE_ALONE);
+                updateShowSearchHoldoff();
+            }
+            else if (Intent.ACTION_SCREEN_ON.equals(action)) {
+                // work around problem where mDisplay.getRotation() is not stable while screen is off (bug 7086018)
+                repositionNavigationBar();
             }
         }
     };