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

Source/core/animation/EffectInputTest.cpp

Index: Source/core/animation/EffectInputTest.cpp
diff --git a/Source/core/animation/EffectInputTest.cpp b/Source/core/animation/EffectInputTest.cpp
index d3c396ab035e26790e5bc2c401475faa695acd91..0cfd9068e749dbd1e991f54e06d72b7eef939ce5 100644
--- a/Source/core/animation/EffectInputTest.cpp
+++ b/Source/core/animation/EffectInputTest.cpp
@@ -16,9 +16,7 @@
 #include <gtest/gtest.h>
 #include <v8.h>
 
-using namespace blink;
-
-namespace {
+namespace blink {
 
 class AnimationEffectInputTest : public ::testing::Test {
 protected:
@@ -152,4 +150,4 @@ TEST_F(AnimationEffectInputTest, Invalid)
     EXPECT_EQ(InvalidModificationError, exceptionState.code());
 }
 
-}
+} // namespace blink