Simplify calls for scale factor

content/browser/renderer_host/render_widget_host_view_base.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 "content/browser/renderer_host/render_widget_host_view_base.h"
 
 #include "base/logging.h"
 #include "build/build_config.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
 #include "content/browser/renderer_host/input/synthetic_gesture_target_base.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_delegate.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_base_observer.h"
 #include "content/browser/renderer_host/render_widget_host_view_frame_subscriber.h"
 #include "content/browser/renderer_host/text_input_manager.h"
 #include "content/common/content_switches_internal.h"
 #include "media/base/video_frame.h"
-#include "ui/display/display.h"
+#include "ui/base/layout.h"
 #include "ui/display/screen.h"
 #include "ui/gfx/geometry/point_conversions.h"
 #include "ui/gfx/geometry/size_conversions.h"
 #include "ui/gfx/geometry/size_f.h"
 
 namespace content {
 
 namespace {
 
 // How many microseconds apart input events should be flushed.
@@ skipping 66 matching lines @@
 
 void RenderWidgetHostViewBase::SetBackgroundColorToDefault() {
   SetBackgroundColor(SK_ColorWHITE);
 }
 
 bool RenderWidgetHostViewBase::GetBackgroundOpaque() {
   return SkColorGetA(background_color_) == SK_AlphaOPAQUE;
 }
 
 gfx::Size RenderWidgetHostViewBase::GetPhysicalBackingSize() const {
-  display::Display display =
-      display::Screen::GetScreen()->GetDisplayNearestWindow(GetNativeView());
-  return gfx::ScaleToCeiledSize(GetRequestedRendererSize(),
-                                display.device_scale_factor());
+  return gfx::ScaleToCeiledSize(
+      GetRequestedRendererSize(),
+      ui::GetScaleFactorForNativeView(GetNativeView()));
 }
 
 bool RenderWidgetHostViewBase::DoBrowserControlsShrinkBlinkSize() const {
   return false;
 }
 
 float RenderWidgetHostViewBase::GetTopControlsHeight() const {
   return 0.f;
 }
 
@@ skipping 394 matching lines @@
 
 bool RenderWidgetHostViewBase::IsChildFrameForTesting() const {
   return false;
 }
 
 cc::SurfaceId RenderWidgetHostViewBase::SurfaceIdForTesting() const {
   return cc::SurfaceId();
 }
 
 }  // namespace content