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

Source/core/layout/OverflowModelTest.cpp

Index: Source/core/layout/OverflowModelTest.cpp
diff --git a/Source/core/layout/OverflowModelTest.cpp b/Source/core/layout/OverflowModelTest.cpp
index 262d88773952e0122154cc580afde4a47b23652d..4418efc7ab3400a299d793cd3ccce818bd687717 100644
--- a/Source/core/layout/OverflowModelTest.cpp
+++ b/Source/core/layout/OverflowModelTest.cpp
@@ -32,11 +32,8 @@
 #include "core/layout/OverflowModel.h"
 
 #include "platform/geometry/LayoutRect.h"
-
 #include <gtest/gtest.h>
 
-using namespace blink;
-
 namespace blink {
 
 // FIXME: Move this somewhere more generic.
@@ -49,8 +46,6 @@ void PrintTo(const LayoutRect& rect, std::ostream* os)
         << rect.height().toFloat() << ")";
 }
 
-} // namespace blink
-
 namespace {
 
 LayoutRect initialLayoutOverflow()
@@ -191,4 +186,6 @@ TEST_F(OverflowModelTest, MoveAffectsContentsVisualOverflow)
     EXPECT_EQ(LayoutRect(500, 100, 10, 10), m_overflow.contentsVisualOverflowRect());
 }
 
-} // namespace
+} // anonymous namespace
+
+} // namespace blink