Fix jank on resize followed by tab switch.

ui/views/controls/native/native_view_host_aura.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/controls/native/native_view_host_aura.h"
 
 #include "base/logging.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/client/focus_client.h"
 #include "ui/aura/window.h"
@@ skipping 181 matching lines @@
 
 // static
 NativeViewHostWrapper* NativeViewHostWrapper::CreateWrapper(
     NativeViewHost* host) {
   return new NativeViewHostAura(host);
 }
 
 void NativeViewHostAura::AddClippingWindow() {
   RemoveClippingWindow();
 
-  gfx::Rect bounds = host_->native_view()->bounds();
+  gfx::Rect bounds = host_->GetVisibleBounds();
   host_->native_view()->SetProperty(aura::client::kHostWindowKey,
                                     host_->GetWidget()->GetNativeView());
   Widget::ReparentNativeView(host_->native_view(),
                              &clipping_window_);
   if (host_->GetWidget()->GetNativeView()) {
     Widget::ReparentNativeView(&clipping_window_,
                                host_->GetWidget()->GetNativeView());
   }
   clipping_window_.SetBounds(bounds);

[sky, 2014/08/05 16:42:51]

Is there a reason we need to set the bounds here? Can't we wait until we're told
the bounds (ShowWidget)?

   bounds.set_origin(gfx::Point(0, 0));
   host_->native_view()->SetBounds(bounds);
   clipping_window_.Show();
 }
 
 void NativeViewHostAura::RemoveClippingWindow() {
   clipping_window_.Hide();
   if (host_->native_view())
     host_->native_view()->ClearProperty(aura::client::kHostWindowKey);
 
   if (host_->native_view()->parent() == &clipping_window_) {
     if (host_->GetWidget() && host_->GetWidget()->GetNativeView()) {
       Widget::ReparentNativeView(host_->native_view(),
                                  host_->GetWidget()->GetNativeView());
     } else {
       clipping_window_.RemoveChild(host_->native_view());
     }
     host_->native_view()->SetBounds(clipping_window_.bounds());
   }
   if (clipping_window_.parent())
     clipping_window_.parent()->RemoveChild(&clipping_window_);
 }
 
 }  // namespace views