Fix unit test style in core/{animation,css,fetch,frame,layout,style,timing}/.

Source/core/fetch/ResourceTest.cpp

Index: Source/core/fetch/ResourceTest.cpp
diff --git a/Source/core/fetch/ResourceTest.cpp b/Source/core/fetch/ResourceTest.cpp
index 5dd02c66dd8a81713f34f16d74ffa465dc483415..84372390630c7d93e5190c63f14ce7ba93f2f7f6 100644
--- a/Source/core/fetch/ResourceTest.cpp
+++ b/Source/core/fetch/ResourceTest.cpp
@@ -11,11 +11,8 @@
 #include "platform/testing/URLTestHelpers.h"
 #include "public/platform/Platform.h"
 #include "wtf/Vector.h"
-
 #include <gtest/gtest.h>
 
-using namespace blink;
-
 namespace blink {
 
 namespace {
@@ -84,7 +81,7 @@ void createTestResourceAndSetCachedMetadata(const ResourceResponse* response)
     return;
 }
 
-} // namespace
+} // anonymous namespace
 
 TEST(ResourceTest, SetCachedMetadata_SendsMetadataToPlatform)
 {