Implement features in NativeViewHostAura for scroll end effect

ui/views/controls/native/native_view_host.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.h"
 
 #include "base/logging.h"
 #include "ui/gfx/canvas.h"
 #include "ui/views/accessibility/native_view_accessibility.h"
 #include "ui/views/controls/native/native_view_host_wrapper.h"
@@ skipping 15 matching lines @@
 const bool NativeViewHost::kRenderNativeControlFocus = true;
 #endif
 
 ////////////////////////////////////////////////////////////////////////////////
 // NativeViewHost, public:
 
 NativeViewHost::NativeViewHost()
     : native_view_(NULL),
       fast_resize_(false),
       fast_resize_at_last_layout_(false),
+      fast_resize_gravity_(FAST_RESIZE_GRAVITY_NORTHWEST),
       focus_view_(NULL) {
 }
 
 NativeViewHost::~NativeViewHost() {
 }
 
 void NativeViewHost::Attach(gfx::NativeView native_view) {
   DCHECK(native_view);
   DCHECK(!native_view_);
   native_view_ = native_view;
@@ skipping 175 matching lines @@
   Widget::GetAllChildWidgets(native_view(), &widgets);
   for (Widget::Widgets::iterator i = widgets.begin(); i != widgets.end(); ++i) {
     focus_manager->ViewRemoved((*i)->GetRootView());
     if (!focus_manager->GetFocusedView())
       return;
   }
 }
 
 
 }  // namespace views