resolve merge conflicts of 668ac75 to master

Test: This is a merge resolution.
Change-Id: I553b8fcdc661a6ea26cdcf1ae31f774ba7750c79
diff --git a/services/core/java/com/android/server/wm/RootWindowContainer.java b/services/core/java/com/android/server/wm/RootWindowContainer.java
index 8de267c..34e9696 100644
--- a/services/core/java/com/android/server/wm/RootWindowContainer.java
+++ b/services/core/java/com/android/server/wm/RootWindowContainer.java
@@ -128,6 +128,10 @@
     private boolean mSustainedPerformanceModeCurrent = false;
 
     boolean mWallpaperMayChange = false;
+    // During an orientation change, we track whether all windows have rendered
+    // at the new orientation, and this will be false from changing orientation until that occurs.
+    // For seamless rotation cases this always stays true, as the windows complete their orientation
+    // changes 1 by 1 without disturbing global state.
     boolean mOrientationChangeComplete = true;
     boolean mWallpaperActionPending = false;