Fix SurfaceView notifies on invalid surfaces.

SurfaceView notifies registered callbacks on invalid
Surfaces.

Change-Id: Iddc9a5cd073fb73a0e7e9b9ca64ff4fac0777ca7

Author: Andreas Röhl

core/java/android/view/SurfaceView.java

@@ -531,7 +531,7 @@ private void updateWindow(boolean force, boolean redrawNeeded) {
 
                     mSurface.transferFrom(mNewSurface);
 
-                    if (visible) {
+                    if (visible && mSurface.isValid()) {
                         if (!mSurfaceCreated && (surfaceChanged || visibleChanged)) {
                             mSurfaceCreated = true;
                             mIsCreating = true;