linux_aura: Compile ash into chrome.

chrome/browser/ui/ash/session_state_delegate_views.h

 // Copyright (c) 2013 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.
 
 #ifndef CHROME_BROWSER_UI_ASH_SESSION_STATE_DELEGATE_VIEWS_H_
 #define CHROME_BROWSER_UI_ASH_SESSION_STATE_DELEGATE_VIEWS_H_
 
 #include "ash/session_state_delegate.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/observer_list.h"
+#include "ui/gfx/image/image_skia.h"
 
 namespace ash {
 class SessionStateObserver;
 }  // namespace ash
 
 class SessionStateDelegate : public ash::SessionStateDelegate {
  public:
   SessionStateDelegate();
   virtual ~SessionStateDelegate();
 
@@ skipping 23 matching lines @@
   virtual const gfx::ImageSkia& GetUserImage(
       content::BrowserContext* context) const OVERRIDE;
   virtual bool ShouldShowAvatar(aura::Window* window) OVERRIDE;
   virtual void SwitchActiveUser(const std::string& user_id) OVERRIDE;
   virtual void CycleActiveUser(CycleUser cycle_user) OVERRIDE;
   virtual void AddSessionStateObserver(
       ash::SessionStateObserver* observer) OVERRIDE;
   virtual void RemoveSessionStateObserver(
       ash::SessionStateObserver* observer) OVERRIDE;
  private:
+  // A psuedo user image.
+  gfx::ImageSkia null_image_;
+
   DISALLOW_COPY_AND_ASSIGN(SessionStateDelegate);
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_SESSION_STATE_DELEGATE_VIEWS_H_