Ensure Surface size always matches window size on swap

ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/widget/desktop_aura/desktop_window_tree_host_win.h"
 
 #include "base/win/metro.h"
 #include "third_party/skia/include/core/SkPath.h"
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/aura/client/aura_constants.h"
@@ skipping 923 matching lines @@
 }
 
 bool DesktopWindowTreeHostWin::HandleScrollEvent(
     const ui::ScrollEvent& event) {
   SendEventToProcessor(const_cast<ui::ScrollEvent*>(&event));
   return event.handled();
 }
 
 void DesktopWindowTreeHostWin::HandleWindowSizeChanging() {
   if (compositor() && need_synchronous_paint_) {
-    compositor()->FinishAllRendering();
+    compositor()->DisableSwapUntilResize();
     // If we received the window size changing notification due to a restore or
     // maximize operation, then we can reset the need_synchronous_paint_ flag
     // here. For a sizing operation, the flag will be reset at the end of the
     // operation.
     if (!in_sizing_loop_)
       need_synchronous_paint_ = false;
   }
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ skipping 40 matching lines @@
 
 // static
 DesktopWindowTreeHost* DesktopWindowTreeHost::Create(
     internal::NativeWidgetDelegate* native_widget_delegate,
     DesktopNativeWidgetAura* desktop_native_widget_aura) {
   return new DesktopWindowTreeHostWin(native_widget_delegate,
                                       desktop_native_widget_aura);
 }
 
 }  // namespace views