Cleanup namespace usage in modules/.

Source/modules/serviceworkers/ServiceWorkerContainerTest.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "modules/serviceworkers/ServiceWorkerContainer.h"
 
 #include "bindings/core/v8/Dictionary.h"
 #include "bindings/core/v8/ScriptFunction.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8DOMException.h"
 #include "bindings/core/v8/V8GCController.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/testing/DummyPageHolder.h"
 #include "modules/serviceworkers/ServiceWorkerContainerClient.h"
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "public/platform/WebServiceWorkerProvider.h"
 #include "public/platform/WebURL.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/text/WTFString.h"
 #include <gtest/gtest.h>
 #include <v8.h>
 
-using namespace blink;
-
+namespace blink {
 namespace {
 
 // Promise-related test support.
 
 struct StubScriptFunction {
 public:
     StubScriptFunction()
         : m_callCount(0)
     {
     }
@@ skipping 294 matching lines @@
         container->unregisterServiceWorker(scriptState(), "y/");
 
         EXPECT_EQ(1ul, stubProvider.unregisterCallCount());
         EXPECT_EQ(WebURL(KURL(KURL(), "http://localhost/x/y/")), stubProvider.unregisterScope());
     }
 
     container->willBeDetachedFromFrame();
 }
 
 } // namespace
+} // namespace blink