Fix unit test style in Source/web/.

Source/web/tests/WebURLRequestTest.cpp

Index: Source/web/tests/WebURLRequestTest.cpp
diff --git a/Source/web/tests/WebURLRequestTest.cpp b/Source/web/tests/WebURLRequestTest.cpp
index 6ec6d9d1f0da422416be72c660cdf79abe06beb1..8218cd60776deb76ff6fdb375c9e9e2e9f03453f 100644
--- a/Source/web/tests/WebURLRequestTest.cpp
+++ b/Source/web/tests/WebURLRequestTest.cpp
@@ -29,14 +29,11 @@
  */
 
 #include "config.h"
-
 #include "public/platform/WebURLRequest.h"
 
 #include <gtest/gtest.h>
 
-using namespace blink;
-
-namespace {
+namespace blink {
 
 class TestExtraData : public WebURLRequest::ExtraData {
 public:
@@ -46,7 +43,7 @@ public:
         *alive = true;
     }
 
-    virtual ~TestExtraData() { *m_alive = false; }
+    ~TestExtraData() override { *m_alive = false; }
 
 private:
     bool* m_alive;
@@ -75,4 +72,4 @@ TEST(WebURLRequestTest, ExtraData)
     EXPECT_FALSE(alive);
 }
 
-} // namespace
+} // namespace blink