Move the "platform" wrappers in skia/ext to the skia namespace.

chrome/common/gfx/chrome_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.
 
 #ifndef CHROME_COMMON_GFX_CHROME_CANVAS_H_
 #define CHROME_COMMON_GFX_CHROME_CANVAS_H_
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
@@ skipping 17 matching lines @@
 // end with Int. If you need to use methods provided by the superclass
 // you'll need to do a conversion. In particular you'll need to use
 // macro SkIntToScalar(xxx), or if converting from a scalar to an integer
 // SkScalarRound.
 //
 // A handful of methods in this class are overloaded providing an additional
 // argument of type SkPorterDuff::Mode. SkPorterDuff::Mode specifies how the
 // source and destination colors are combined. Unless otherwise specified,
 // the variant that does not take a SkPorterDuff::Mode uses a transfer mode
 // of kSrcOver_Mode.
-class ChromeCanvas : public gfx::PlatformCanvas {
+class ChromeCanvas : public skia::PlatformCanvas {
  public:
   // Specifies the alignment for text rendered with the DrawStringInt method.
   enum {
     TEXT_ALIGN_LEFT = 1,
     TEXT_ALIGN_CENTER = 2,
     TEXT_ALIGN_RIGHT = 4,
     TEXT_VALIGN_TOP = 8,
     TEXT_VALIGN_MIDDLE = 16,
     TEXT_VALIGN_BOTTOM = 32,
 
@@ skipping 126 matching lines @@
   // text is too big, it is truncated and '...' is added to the end.
   void DrawStringInt(const std::wstring& text, HFONT font,
                      const SkColor& color, int x, int y, int w, int h,
                      int flags);
 #endif
 
   DISALLOW_EVIL_CONSTRUCTORS(ChromeCanvas);
 };
 
 #if defined(OS_WIN)
-typedef gfx::CanvasPaintT<ChromeCanvas> ChromeCanvasPaint;
+typedef skia::CanvasPaintT<ChromeCanvas> ChromeCanvasPaint;
 #endif
 
 #endif  // CHROME_COMMON_GFX_CHROME_CANVAS_H_