Fix unit test style in Source/web/.

Source/web/tests/CustomEventTest.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 28 matching lines @@
 #include "platform/testing/URLTestHelpers.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebUnitTestSupport.h"
 #include "public/web/WebDOMCustomEvent.h"
 #include "public/web/WebFrame.h"
 #include "public/web/WebView.h"
 #include "v8.h"
 #include "web/WebLocalFrameImpl.h"
 #include "web/WebViewImpl.h"
 #include "web/tests/FrameTestHelpers.h"
-
 #include <gtest/gtest.h>
 
-using namespace blink;
-
-namespace {
+namespace blink {
 
 class TestListener : public V8AbstractEventListener {
 public:
-    virtual bool operator==(const EventListener&)
+    bool operator==(const EventListener&) override
     {
         return true;
     }
 
-    virtual void handleEvent(ScriptState* scriptState, Event* event)
+    void handleEvent(ScriptState* scriptState, Event* event) override
     {
         EXPECT_EQ(event->type(), "blah");
 
         ScriptState::Scope scope(scriptState);
         v8::Local<v8::Context> context = scriptState->context();
         v8::Local<v8::Value> jsEvent = toV8(event, context->Global(), isolate());
 
         EXPECT_EQ(jsEvent->ToObject(context).ToLocalChecked()->Get(context, v8AtomicString(isolate(), "detail")).ToLocalChecked(), v8::Boolean::New(isolate(), true));
     }
 
     static PassRefPtr<TestListener> create(ScriptState* scriptState)
     {
         return adoptRef(new TestListener(scriptState));
     }
 
 private:
     TestListener(ScriptState* scriptState)
         : V8AbstractEventListener(false, scriptState->world(), scriptState->isolate())
     {
     }
 
-    virtual v8::Local<v8::Value> callListenerFunction(ScriptState*, v8::Local<v8::Value>, Event*)
+    v8::Local<v8::Value> callListenerFunction(ScriptState*, v8::Local<v8::Value>, Event*) override
     {
         ASSERT_NOT_REACHED();
         return v8::Local<v8::Value>();
     }
 };
 
 // Tests that a CustomEvent can be initialized with a 'detail' value that is a
 // SerializedScriptValue, and that this value can be retrieved and read in an
 // event listener. Initialization of a CustomEvent with a SerializedScriptValue
 // is an internal API, so it cannot be tested with a LayoutTest.
@@ skipping 13 matching lines @@
     v8::Isolate* isolate = toIsolate(frame->frame());
     V8TestingScope scope(isolate);
     customEvent.initCustomEvent("blah", false, false, WebSerializedScriptValue::serialize(v8::Boolean::New(isolate, true)));
     RefPtr<EventListener> listener = TestListener::create(scope.scriptState());
     frame->frame()->document()->addEventListener("blah", listener, false);
     frame->frame()->document()->dispatchEvent(event);
 
     Platform::current()->unitTestSupport()->unregisterAllMockedURLs();
 }
 
-}
+} // namespace blink