Fix unit test style in Source/web/.

Source/web/tests/WebScopedWindowFocusAllowedIndicatorTest.cpp

Index: Source/web/tests/WebScopedWindowFocusAllowedIndicatorTest.cpp
diff --git a/Source/web/tests/WebScopedWindowFocusAllowedIndicatorTest.cpp b/Source/web/tests/WebScopedWindowFocusAllowedIndicatorTest.cpp
index c660156159d99fbbbaf572ad3e63594d464e0e66..5c7100a52520f06829931cded36249101d84a19a 100644
--- a/Source/web/tests/WebScopedWindowFocusAllowedIndicatorTest.cpp
+++ b/Source/web/tests/WebScopedWindowFocusAllowedIndicatorTest.cpp
@@ -35,9 +35,7 @@
 #include "public/web/WebDocument.h"
 #include <gtest/gtest.h>
 
-using namespace blink;
-
-namespace {
+namespace blink {
 
 TEST(WebScopedWindowFocusAllowedIndicatorTest, Basic)
 {
@@ -57,4 +55,4 @@ TEST(WebScopedWindowFocusAllowedIndicatorTest, Basic)
     EXPECT_FALSE(document->isWindowInteractionAllowed());
 }
 
-}
+} // namespace blink