Move skia to DEPS, and put it in third_party.

views/background.h

 // Copyright (c) 2006-2008 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 VIEWS_BACKGROUND_H_
 #define VIEWS_BACKGROUND_H_
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif  // defined(OS_WIN)
 
 #include "base/basictypes.h"
-#include "skia/include/SkColor.h"
+#include "third_party/skia/include/core/SkColor.h"
 
 class ChromeCanvas;
 
 namespace views {
 
 class Painter;
 class View;
 
 /////////////////////////////////////////////////////////////////////////////
 //
@@ skipping 56 matching lines @@
 #if defined(OS_WIN)
   // TODO(port): Create portable replacement for HBRUSH.
   HBRUSH native_control_brush_;
 #endif  // defined(OS_WIN)
   DISALLOW_COPY_AND_ASSIGN(Background);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_BACKGROUND_H_