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

Source/platform/image-decoders/jpeg/JPEGImageDecoderTest.cpp

 /*
  * Copyright (C) 2013 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/image-decoders/jpeg/JPEGImageDecoder.h"
 
 #include "platform/SharedBuffer.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebData.h"
 #include "public/platform/WebSize.h"
 #include "public/platform/WebUnitTestSupport.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/StringHasher.h"
-
 #include <gtest/gtest.h>
 
-using namespace blink;
+namespace blink {
 
 static const size_t LargeEnoughSize = 1000 * 1000;
 
 namespace {
 
 PassRefPtr<SharedBuffer> readFile(const char* fileName)
 {
     String filePath = Platform::current()->unitTestSupport()->webKitRootDir();
     filePath.append(fileName);
 
     return Platform::current()->unitTestSupport()->readFromFile(filePath);
 }
 
 PassOwnPtr<JPEGImageDecoder> createDecoder(size_t maxDecodedBytes)
 {
     return adoptPtr(new JPEGImageDecoder(ImageSource::AlphaNotPremultiplied, ImageSource::GammaAndColorProfileApplied, maxDecodedBytes));
 }
 
-} // namespace
+} // anonymous namespace
 
 void downsample(size_t maxDecodedBytes, unsigned* outputWidth, unsigned* outputHeight, const char* imageFilePath)
 {
     RefPtr<SharedBuffer> data = readFile(imageFilePath);
     ASSERT_TRUE(data.get());
 
     OwnPtr<JPEGImageDecoder> decoder = createDecoder(maxDecodedBytes);
     decoder->setData(data.get(), true);
 
     ImageFrame* frame = decoder->frameBufferAtIndex(0);
@@ skipping 153 matching lines @@
     ASSERT_TRUE(data.get());
 
     OwnPtr<JPEGImageDecoder> decoder = createDecoder(230 * 230 * 4);
     decoder->setData(data.get(), true);
 
     OwnPtr<ImagePlanes> imagePlanes = adoptPtr(new ImagePlanes());
     decoder->setImagePlanes(imagePlanes.release());
     ASSERT_TRUE(decoder->isSizeAvailable());
     ASSERT_FALSE(decoder->canDecodeToYUV());
 }
+
+} // namespace blink