Use inner HWND for accelerated rendering on windows

chrome/browser/renderer_host/render_widget_host_view_gtk.cc

 // Copyright (c) 2010 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 "chrome/browser/renderer_host/render_widget_host_view_gtk.h"
 
 // If this gets included after the gtk headers, then a bunch of compiler
 // errors happen because of a "#define Status int" in Xlib.h, which interacts
 // badly with URLRequestStatus::Status.
 #include "chrome/common/render_messages.h"
@@ skipping 796 matching lines @@
     drag_monitor_size.SetSize(0, 0);
   }
   dragged_at_horizontal_edge_ = new_dragged_at_horizontal_edge;
   dragged_at_vertical_edge_ = new_dragged_at_vertical_edge;
 }
 
 void RenderWidgetHostViewGtk::Paint(const gfx::Rect& damage_rect) {
   // If the GPU process is rendering directly into the View,
   // call the compositor directly.
   RenderWidgetHost* render_widget_host = GetRenderWidgetHost();
-  if (render_widget_host->is_gpu_rendering_active()) {
+  if (render_widget_host->is_accelerated_compositing_active()) {
     host_->ScheduleComposite();
     return;
   }
 
   GdkWindow* window = view_.get()->window;
   DCHECK(!about_to_validate_and_paint_);
 
   invalid_rect_ = damage_rect;
   about_to_validate_and_paint_ = true;
   BackingStoreX* backing_store = static_cast<BackingStoreX*>(
@@ skipping 239 matching lines @@
 }
 
 // static
 RenderWidgetHostView*
     RenderWidgetHostView::GetRenderWidgetHostViewFromNativeView(
         gfx::NativeView widget) {
   gpointer user_data = g_object_get_data(G_OBJECT(widget),
                                          kRenderWidgetHostViewKey);
   return reinterpret_cast<RenderWidgetHostView*>(user_data);
 }