Fix unit test style in Source/platform/, part 2.

Source/platform/graphics/GraphicsContextTest.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
-
 #include "platform/graphics/GraphicsContext.h"
 
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/graphics/BitmapImage.h"
 #include "platform/graphics/ImageBuffer.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkPicture.h"
 #include "third_party/skia/include/core/SkShader.h"
 #include "third_party/skia/include/effects/SkBlurDrawLooper.h"
 #include "third_party/skia/include/effects/SkBlurImageFilter.h"
 #include "third_party/skia/include/effects/SkBlurMaskFilter.h"
-
 #include <gtest/gtest.h>
 
-using namespace blink;
-
-namespace {
+namespace blink {
 
 #define EXPECT_EQ_RECT(a, b) \
     EXPECT_EQ(a.x(), b.x()); \
     EXPECT_EQ(a.y(), b.y()); \
     EXPECT_EQ(a.width(), b.width()); \
     EXPECT_EQ(a.height(), b.height());
 
 #define EXPECT_OPAQUE_PIXELS_IN_RECT(bitmap, opaqueRect) \
 { \
     SkAutoLockPixels locker(bitmap); \
@@ skipping 221 matching lines @@
     EXPECT_NE(canvas1, canvas2);
     EXPECT_TRUE(canvas1->unique());
 
     // endRecording finally makes the picture accessible
     RefPtr<const SkPicture> picture = context->endRecording();
     EXPECT_TRUE(picture);
 
     context->endRecording();
 }
 
-} // namespace
+} // namespace blink