Fix unit test style in Source/platform/, part 1.

Source/platform/DragImageTest.cpp

 /*
  * Copyright (C) 2010 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 11 matching lines @@
  * OWNER OR 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/DragImage.h"
 
 #include "platform/fonts/FontDescription.h"
 #include "platform/fonts/FontTraits.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/graphics/BitmapImage.h"
 #include "platform/graphics/Image.h"
 #include "platform/weborigin/KURL.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "third_party/skia/include/core/SkPixelRef.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
-
 #include <gtest/gtest.h>
 
-using namespace blink;
-
-namespace {
+namespace blink {
 
 class TestImage : public Image {
 public:
 
     static PassRefPtr<TestImage> create(const IntSize& size)
     {
         return adoptRef(new TestImage(size));
     }
 
     explicit TestImage(const IntSize& size)
@@ skipping 26 matching lines @@
     bool currentFrameKnownToBeOpaque() override
     {
         return false;
     }
 
     void draw(SkCanvas*, const SkPaint&, const FloatRect&, const FloatRect&, RespectImageOrientationEnum, ImageClampingMode) override
     {
     }
 
 private:
-
     IntSize m_size;
-
     SkBitmap m_bitmap;
 };
 
 TEST(DragImageTest, NullHandling)
 {
     EXPECT_FALSE(DragImage::create(0));
 
     RefPtr<TestImage> nullTestImage(TestImage::create(IntSize()));
     EXPECT_FALSE(DragImage::create(nullTestImage.get()));
 }
@@ skipping 126 matching lines @@
     const SkBitmap& dragBitmap = dragImage->bitmap();
     {
         SkAutoLockPixels lock1(dragBitmap);
         SkAutoLockPixels lock2(expectedBitmap);
         for (int x = 0; x < dragBitmap.width(); ++x)
             for (int y = 0; y < dragBitmap.height(); ++y)
                 EXPECT_EQ(expectedBitmap.getColor(x, y), dragBitmap.getColor(x, y));
     }
 }
 
-} // anonymous namespace
+} // namespace blink