Don't report a resize unless the window's surface actually changed.

Change-Id: I133cf8e417753dba60d23a3bfc1c84ace983b335
diff --git a/services/java/com/android/server/am/ActivityStack.java b/services/java/com/android/server/am/ActivityStack.java
index d8772b8..b94ee58 100644
--- a/services/java/com/android/server/am/ActivityStack.java
+++ b/services/java/com/android/server/am/ActivityStack.java
@@ -73,7 +73,7 @@
  */
 final class ActivityStack {
     static final String TAG = ActivityManagerService.TAG;
-    static final boolean localLOGV = ActivityManagerService.localLOGV || true;
+    static final boolean localLOGV = ActivityManagerService.localLOGV;
     static final boolean DEBUG_SWITCH = ActivityManagerService.DEBUG_SWITCH;
     static final boolean DEBUG_PAUSE = ActivityManagerService.DEBUG_PAUSE;
     static final boolean DEBUG_VISBILITY = ActivityManagerService.DEBUG_VISBILITY;