Force redraw of new/resized windows

Our use of the GL flag EGL_SWAP_BEHAVIOR_PRESERVED_BIT caused a problem
with windows that are resized, where some of the contents were not being
updated when the window was first placed/resized. The fix is to force the
window to redraw completely when it is first resized.

Issue #7246918 Label selection view disappears

Change-Id: I3562141569502af581a3d63b1290c598abb57ade

Author: chethaase

core/java/android/view/ViewRootImpl.java

@@ -1616,6 +1616,7 @@ private void performTraversals() {
                     mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight);
                     if (!hwInitialized) {
                         mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface());
+                        mFullRedrawNeeded = true;
                     }
                 }
             }