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

Source/core/layout/shapes/BoxShapeTest.cpp

Index: Source/core/layout/shapes/BoxShapeTest.cpp
diff --git a/Source/core/layout/shapes/BoxShapeTest.cpp b/Source/core/layout/shapes/BoxShapeTest.cpp
index 029ee96daf771a3f609dc00ee67b0c4901622e37..adb8446c2488923d71bbb71ff701ab0c6cd85103 100644
--- a/Source/core/layout/shapes/BoxShapeTest.cpp
+++ b/Source/core/layout/shapes/BoxShapeTest.cpp
@@ -28,11 +28,9 @@
  */
 
 #include "config.h"
-
 #include "core/layout/shapes/BoxShape.h"
 
 #include "platform/geometry/FloatRoundedRect.h"
-
 #include <gtest/gtest.h>
 
 namespace blink {
@@ -47,12 +45,8 @@ protected:
     }
 };
 
-} // namespace blink
-
 namespace {
 
-using namespace blink;
-
 #define TEST_EXCLUDED_INTERVAL(shapePtr, lineTop, lineHeight, expectedLeft, expectedRight) \
 {                                                                                          \
     LineSegment segment = shapePtr->getExcludedInterval(lineTop, lineHeight);                           \
@@ -138,4 +132,6 @@ TEST_F(BoxShapeTest, getIntervals)
     TEST_EXCLUDED_INTERVAL(shape, 85, 10, 0, 97.320511f);
 }
 
-} // namespace
+} // anonymous namespace
+
+} // namespace blink