Minimize resize calls

ui/aura/window.cc

 // Copyright (c) 2011 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/aura/window.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/stl_util.h"
@@ skipping 424 matching lines @@
 void* Window::GetProperty(const char* name) const {
   return ui::ViewProp::GetValue(const_cast<gfx::NativeView>(this), name);
 }
 
 Desktop* Window::GetDesktop() {
   return parent_ ? parent_->GetDesktop() : NULL;
 }
 
 void Window::SetBoundsInternal(const gfx::Rect& new_bounds) {
   const gfx::Rect old_bounds = bounds();
+  if (old_bounds == new_bounds)
+    return;
+
   bool was_move = old_bounds.size() == new_bounds.size();
   layer_->SetBounds(new_bounds);
 
   if (layout_manager_.get())
     layout_manager_->OnWindowResized();
   if (delegate_)
     delegate_->OnBoundsChanged(old_bounds, new_bounds);
   if (IsVisible()) {
     if (was_move)
       layer()->ScheduleDraw();
@@ skipping 74 matching lines @@
 
 void Window::OnPaintLayer(gfx::Canvas* canvas) {
   delegate_->OnPaint(canvas);
 }
 
 void Window::OnLayerAnimationEnded(
     const ui::LayerAnimationSequence* animation) {
 }
 
 }  // namespace aura