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

Source/platform/image-decoders/bmp/BMPImageDecoderTest.cpp

 // Copyright 2015 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.
 
 #include "config.h"
-
 #include "platform/image-decoders/bmp/BMPImageDecoder.h"
 
 #include "platform/SharedBuffer.h"
 #include "public/platform/WebUnitTestSupport.h"
-
 #include <gtest/gtest.h>
 
-using namespace blink;
+namespace blink {
 
 namespace {
 
 PassRefPtr<SharedBuffer> readFile(const char* fileName)
 {
     String filePath = Platform::current()->unitTestSupport()->webKitRootDir();
     filePath.append(fileName);
 
     return Platform::current()->unitTestSupport()->readFromFile(filePath);
 }
 
 PassOwnPtr<BMPImageDecoder> createDecoder()
 {
     return adoptPtr(new BMPImageDecoder(ImageSource::AlphaNotPremultiplied, ImageSource::GammaAndColorProfileApplied, ImageDecoder::noDecodedImageByteLimit));
 }
 
-} // namespace
+} // anonymous namespace
 
 TEST(BMPImageDecoderTest, isSizeAvailable)
 {
     const char* bmpFile = "/LayoutTests/fast/images/resources/lenna.bmp"; // 256x256
     RefPtr<SharedBuffer> data = readFile(bmpFile);
     ASSERT_TRUE(data.get());
 
     OwnPtr<BMPImageDecoder> decoder = createDecoder();
     decoder->setData(data.get(), true);
     EXPECT_TRUE(decoder->isSizeAvailable());
@@ skipping 26 matching lines @@
     ASSERT_TRUE(data.get());
 
     OwnPtr<BMPImageDecoder> decoder = createDecoder();
     decoder->setData(data.get(), true);
 
     ImageFrame* frame = decoder->frameBufferAtIndex(0);
     ASSERT_TRUE(frame);
     EXPECT_EQ(ImageFrame::FrameEmpty, frame->status());
     EXPECT_TRUE(decoder->failed());
 }
+
+} // namespace blink