Provide real GPUSupport to ash for Chrome

ash/shell.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 "ash/shell.h"
 
 #include <algorithm>
 #include <string>
 
 #include "ash/accelerators/accelerator_controller.h"
@@ skipping 140 matching lines @@
   // Overridden from views::corewm::VisibilityController:
   virtual bool CallAnimateOnChildWindowVisibilityChanged(
       aura::Window* window,
       bool visible) OVERRIDE {
     return AnimateOnChildWindowVisibilityChanged(window, visible);
   }
 
   DISALLOW_COPY_AND_ASSIGN(AshVisibilityController);
 };
 
-class DefaultGPUSupportImpl : public GPUSupport {
- public:
-  DefaultGPUSupportImpl() {}
-  virtual ~DefaultGPUSupportImpl() {}
-
- private:
-  // Overridden from GPUSupport:
-  virtual bool IsPanelFittingDisabled() const OVERRIDE {
-    return false;
-  }
-  virtual void DisableGpuWatchdog() OVERRIDE {}
-  virtual void GetGpuProcessHandles(
-      const GetGpuProcessHandlesCallback& callback) const OVERRIDE {}
-
-  DISALLOW_COPY_AND_ASSIGN(DefaultGPUSupportImpl);
-};
-
 }  // namespace
 
 // static
 Shell* Shell::instance_ = NULL;
 // static
 bool Shell::initially_hide_cursor_ = false;
 
 ////////////////////////////////////////////////////////////////////////////////
 // Shell, public:
 
@@ skipping 382 matching lines @@
 ash::FirstRunHelper* Shell::CreateFirstRunHelper() {
   return new ash::FirstRunHelperImpl;
 }
 #endif  // defined(OS_CHROMEOS)
 
 void Shell::DoInitialWorkspaceAnimation() {
   return GetPrimaryRootWindowController()->workspace_controller()->
       DoInitialAnimation();
 }
 
-void Shell::SetGPUSupport(scoped_ptr<GPUSupport> gpu_support) {
-  gpu_support_ = gpu_support.Pass();
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // Shell, private:
 
 Shell::Shell(ShellDelegate* delegate)
     : target_root_window_(NULL),
       scoped_target_root_window_(NULL),
       delegate_(delegate),
       window_positioner_(new WindowPositioner),
       activation_client_(NULL),
 #if defined(OS_CHROMEOS) && defined(USE_X11)
       output_configurator_(new chromeos::OutputConfigurator()),
 #endif  // defined(OS_CHROMEOS) && defined(USE_X11)
       native_cursor_manager_(new AshNativeCursorManager),
       cursor_manager_(scoped_ptr<views::corewm::NativeCursorManager>(
           native_cursor_manager_)),
       simulate_modal_window_open_for_testing_(false),
-      is_touch_hud_projection_enabled_(false),
-      gpu_support_(new DefaultGPUSupportImpl) {
+      is_touch_hud_projection_enabled_(false) {
   DCHECK(delegate_.get());
+  gpu_support_.reset(delegate_->CreateGPUSupport());
   display_manager_.reset(new internal::DisplayManager);
   display_controller_.reset(new DisplayController);
 #if defined(OS_CHROMEOS) && defined(USE_X11)
+  // TODO: Move this initialization into Shell::Init().
   output_configurator_->Init(!gpu_support_->IsPanelFittingDisabled());
   user_metrics_recorder_.reset(new UserMetricsRecorder);
 
   base::MessagePumpX11::Current()->AddDispatcherForRootWindow(
       output_configurator());
   // We can't do this with a root window listener because XI_HierarchyChanged
   // messages don't have a target window.
   base::MessagePumpX11::Current()->AddObserver(output_configurator());
 #endif  // defined(OS_CHROMEOS)
 
@@ skipping 458 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 // Shell, aura::client::ActivationChangeObserver implementation:
 
 void Shell::OnWindowActivated(aura::Window* gained_active,
                               aura::Window* lost_active) {
   if (gained_active)
     target_root_window_ = gained_active->GetRootWindow();
 }
 
 }  // namespace ash