Move PlatformCanvas and PlatformDevice from base/gfx to webkit/port. I left h...

base/gfx/platform_canvas.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.
 
-// Declare a platform-neutral name for this platform's canvas class
-// that can be used by upper-level classes that just need to pass a reference
-// around.
-
-#include "build/build_config.h"
-
-#if defined(OS_WIN)
-#include "base/gfx/platform_canvas_win.h"
-namespace gfx {
-
-typedef PlatformCanvasWin PlatformCanvas;
-
-}  // namespace gfx
-#elif defined(OS_MACOSX)
-#include "base/gfx/platform_canvas_mac.h"
-namespace gfx {
-
-typedef PlatformCanvasMac PlatformCanvas;
-
-}  // namespace gfx
-#elif defined(OS_LINUX)
-#include "base/gfx/platform_canvas_linux.h"
-namespace gfx {
-
-typedef PlatformCanvasLinux PlatformCanvas;
-
-}  // namespace gfx
-#endif
+// TODO(brettw) this file should be removed and the includes changed to this
+// new location.
+#include "webkit/port/platform/graphics/skia/public/PlatformCanvas.h"