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

skia/ext/platform_canvas_unittest.cc

 // 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.
 
 // TODO(awalker): clean up the const/non-const reference handling in this test
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #else
 #include <unistd.h>
 #endif
 
 #include "skia/ext/platform_canvas.h"
 #include "skia/ext/platform_device.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #include "SkColor.h"
 
-namespace gfx {
+namespace skia {
 
 namespace {
 
 // Return true if the canvas is filled to canvas_color,
 // and contains a single rectangle filled to rect_color.
 bool VerifyRect(const PlatformCanvas& canvas,
                 uint32_t canvas_color, uint32_t rect_color,
                 int x, int y, int w, int h) {
   PlatformDevice& device = canvas.getTopPlatformDevice();
   const SkBitmap& bitmap = device.accessBitmap(false);
@@ skipping 253 matching lines @@
     LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
     canvas.translate(1, 1);
     AddClip(canvas, kInnerX, kInnerY, kInnerW, kInnerH);
     DrawNativeRect(canvas, 0, 0, 100, 100);
   }
   canvas.restore();
   EXPECT_TRUE(VerifyBlackSquare(canvas, kInnerX + 2, kInnerY + 2,
                                 kInnerW, kInnerH));
 }
 
-}  // namespace
+}  // namespace skia