aura: Scale custom cursors appropriately.

content/browser/renderer_host/render_widget_host_view_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 "content/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 326 matching lines @@
 bool RenderWidgetHostViewAura::IsShowing() {
   return window_->IsVisible();
 }
 
 gfx::Rect RenderWidgetHostViewAura::GetViewBounds() const {
   return window_->GetBoundsInRootWindow();
 }
 
 void RenderWidgetHostViewAura::UpdateCursor(const WebCursor& cursor) {
   current_cursor_ = cursor;
+  const gfx::Display display = gfx::Screen::GetDisplayNearestWindow(window_);
+  current_cursor_.SetScaleFactor(display.device_scale_factor());
   UpdateCursorIfOverSelf();
 }
 
 void RenderWidgetHostViewAura::SetIsLoading(bool is_loading) {
   is_loading_ = is_loading;
   UpdateCursorIfOverSelf();
 }
 
 void RenderWidgetHostViewAura::TextInputStateChanged(
     ui::TextInputType type,
@@ skipping 811 matching lines @@
     float device_scale_factor) {
   if (!host_)
     return;
 
   BackingStoreAura* backing_store = static_cast<BackingStoreAura*>(
       host_->GetBackingStore(false));
   if (backing_store)  // NULL in hardware path.
     backing_store->ScaleFactorChanged(device_scale_factor);
 
   host_->SetDeviceScaleFactor(device_scale_factor);
+  current_cursor_.SetScaleFactor(device_scale_factor);
 }
 
 void RenderWidgetHostViewAura::OnWindowDestroying() {
 }
 
 void RenderWidgetHostViewAura::OnWindowDestroyed() {
   host_->ViewDestroyed();
   delete this;
 }
 
@@ skipping 225 matching lines @@
 RenderWidgetHostView* RenderWidgetHostView::CreateViewForWidget(
     RenderWidgetHost* widget) {
   return new RenderWidgetHostViewAura(widget);
 }
 
 // static
 void content::RenderWidgetHostViewPort::GetDefaultScreenInfo(
     WebKit::WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }