Merge "WindowManager shouldn't layout non-visible windows" into jb-mr1-dev

Author: chethaase

services/java/com/android/server/wm/WindowManagerService.java

@@ -8379,7 +8379,7 @@ private final void performLayoutLockedInner(final DisplayContent displayContent,
             // windows, since that means "perform layout as normal,
             // just don't display").
             if (!gone || !win.mHaveFrame || win.mLayoutNeeded
-                    || win.isConfigChanged()
+                    || (win.mAttrs.type == TYPE_KEYGUARD && win.isConfigChanged())
                     || win.mAttrs.type == TYPE_UNIVERSE_BACKGROUND) {
                 if (!win.mLayoutAttached) {
                     if (initial) {