Rename Widget::CalculateOffsetToAncestorWithLayer() to Widget::GetLayer()

ui/views/widget/desktop_aura/desktop_native_widget_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/widget/desktop_aura/desktop_native_widget_aura.h"
 
 #include "base/bind.h"
 #include "ui/aura/client/activation_client.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/client/stacking_client.h"
@@ skipping 294 matching lines @@
 }
 
 const ui::Compositor* DesktopNativeWidgetAura::GetCompositor() const {
   return window_->layer()->GetCompositor();
 }
 
 ui::Compositor* DesktopNativeWidgetAura::GetCompositor() {
   return window_->layer()->GetCompositor();
 }
 
-gfx::Vector2d DesktopNativeWidgetAura::CalculateOffsetToAncestorWithLayer(
-      ui::Layer** layer_parent) {
-  if (layer_parent)
-    *layer_parent = window_->layer();
-  return gfx::Vector2d();
+ui::Layer* DesktopNativeWidgetAura::GetLayer() {
+  return window_->layer();
 }
 
 void DesktopNativeWidgetAura::ViewRemoved(View* view) {
 }
 
 void DesktopNativeWidgetAura::SetNativeWindowProperty(const char* name,
                                                       void* value) {
   window_->SetNativeWindowProperty(name, value);
 }
 
@@ skipping 509 matching lines @@
   drop_helper_->OnDragExit();
 }
 
 int DesktopNativeWidgetAura::OnPerformDrop(const ui::DropTargetEvent& event) {
   DCHECK(drop_helper_.get() != NULL);
   return drop_helper_->OnDrop(event.data(), event.location(),
       last_drop_operation_);
 }
 
 }  // namespace views