Use ShadowController instead of creating its own.

athena/wm/window_manager_impl.cc

 // Copyright 2014 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 "athena/wm/public/window_manager.h"
 
 #include <algorithm>
 
 #include "athena/common/container_priorities.h"
 #include "athena/input/public/accelerator_manager.h"
 #include "athena/screen/public/screen_manager.h"
 #include "athena/wm/bezel_controller.h"
 #include "athena/wm/mru_window_tracker.h"
 #include "athena/wm/public/window_manager_observer.h"
 #include "athena/wm/split_view_controller.h"
 #include "athena/wm/title_drag_controller.h"
 #include "athena/wm/window_overview_mode.h"
 #include "base/logging.h"
 #include "base/observer_list.h"
 #include "ui/aura/layout_manager.h"
 #include "ui/aura/window.h"
+#include "ui/wm/core/shadow_controller.h"
 #include "ui/wm/core/window_util.h"
 #include "ui/wm/core/wm_state.h"
+#include "ui/wm/public/activation_client.h"
 #include "ui/wm/public/window_types.h"
 
 namespace athena {
 namespace {
 
 class WindowManagerImpl : public WindowManager,
                           public WindowOverviewModeDelegate,
                           public aura::WindowObserver,
                           public AcceleratorHandler,
                           public TitleDragControllerDelegate {
  public:
   WindowManagerImpl();
   virtual ~WindowManagerImpl();
 
   void Layout();
 
   // WindowManager:
   virtual void ToggleOverview() OVERRIDE;
 
   virtual bool IsOverviewModeActive() OVERRIDE;
 
  private:
   enum Command {
-    COMMAND_TOGGLE_OVERVIEW,
+    CMD_TOGGLE_OVERVIEW,
   };
 
   // Sets whether overview mode is active.
   void SetInOverview(bool active);
 
   void InstallAccelerators();
 
   // WindowManager:
   virtual void AddObserver(WindowManagerObserver* observer) OVERRIDE;
   virtual void RemoveObserver(WindowManagerObserver* observer) OVERRIDE;
@@ skipping 19 matching lines @@
   // Should be declared first so that it is destoyed last.
   ObserverList<WindowManagerObserver> observers_;
 
   scoped_ptr<aura::Window> container_;
   scoped_ptr<MruWindowTracker> mru_window_tracker_;
   scoped_ptr<WindowOverviewMode> overview_;
   scoped_ptr<BezelController> bezel_controller_;
   scoped_ptr<SplitViewController> split_view_controller_;
   scoped_ptr<wm::WMState> wm_state_;
   scoped_ptr<TitleDragController> title_drag_controller_;
+  scoped_ptr<wm::ShadowController> shadow_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowManagerImpl);
 };
 
 class AthenaContainerLayoutManager : public aura::LayoutManager {
  public:
   AthenaContainerLayoutManager();
   virtual ~AthenaContainerLayoutManager();
 
  private:
@@ skipping 19 matching lines @@
   container_->SetLayoutManager(new AthenaContainerLayoutManager);
   container_->AddObserver(this);
   mru_window_tracker_.reset(new MruWindowTracker(container_.get()));
   bezel_controller_.reset(new BezelController(container_.get()));
   split_view_controller_.reset(new SplitViewController(
       container_.get(), mru_window_tracker_.get(), this));
   bezel_controller_->set_left_right_delegate(split_view_controller_.get());
   container_->AddPreTargetHandler(bezel_controller_.get());
   title_drag_controller_.reset(new TitleDragController(container_.get(), this));
   wm_state_.reset(new wm::WMState());
+  aura::client::ActivationClient* activation_client =
+      aura::client::GetActivationClient(container_->GetRootWindow());
+  shadow_controller_.reset(new wm::ShadowController(activation_client));
   instance = this;
   InstallAccelerators();
 }
 
 WindowManagerImpl::~WindowManagerImpl() {
   overview_.reset();
   if (container_) {
     container_->RemoveObserver(this);
     container_->RemovePreTargetHandler(bezel_controller_.get());
   }
@@ skipping 42 matching lines @@
                                            this);
   } else {
     overview_.reset();
     FOR_EACH_OBSERVER(WindowManagerObserver, observers_,
                       OnOverviewModeExit());
   }
 }
 
 void WindowManagerImpl::InstallAccelerators() {
   const AcceleratorData accelerator_data[] = {
-      {TRIGGER_ON_PRESS, ui::VKEY_F6, ui::EF_NONE, COMMAND_TOGGLE_OVERVIEW,
+      {TRIGGER_ON_PRESS, ui::VKEY_F6, ui::EF_NONE, CMD_TOGGLE_OVERVIEW,
        AF_NONE},
   };
   AcceleratorManager::Get()->RegisterAccelerators(
       accelerator_data, arraysize(accelerator_data), this);
 }
 
 void WindowManagerImpl::AddObserver(WindowManagerObserver* observer) {
   observers_.AddObserver(observer);
 }
 
@@ skipping 17 matching lines @@
     container_.reset();
 }
 
 bool WindowManagerImpl::IsCommandEnabled(int command_id) const {
   return true;
 }
 
 bool WindowManagerImpl::OnAcceleratorFired(int command_id,
                                            const ui::Accelerator& accelerator) {
   switch (command_id) {
-    case COMMAND_TOGGLE_OVERVIEW:
+    case CMD_TOGGLE_OVERVIEW:
       ToggleOverview();
       break;
   }
   return true;
 }
 
 aura::Window* WindowManagerImpl::GetWindowBehind(aura::Window* window) {
   const aura::Window::Windows& windows = container_->children();
   aura::Window::Windows::const_iterator iter =
       std::find(windows.begin(), windows.end(), window);
@@ skipping 66 matching lines @@
   DCHECK(!instance);
 }
 
 // static
 WindowManager* WindowManager::GetInstance() {
   DCHECK(instance);
   return instance;
 }
 
 }  // namespace athena