Cleanup namespace usage in Source/web/*.h

Source/web/WorkerGlobalScopeProxyProviderImpl.h

 /*
  * 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 18 matching lines @@
  */
 
 #ifndef WorkerGlobalScopeProxyProviderImpl_h
 #define WorkerGlobalScopeProxyProviderImpl_h
 
 #include "core/workers/WorkerGlobalScopeProxyProvider.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/PassOwnPtr.h"
 
 namespace blink {
+
 class Worker;
 class WorkerGlobalScopeProxy;
-}
 
-namespace blink {
-
-class WorkerGlobalScopeProxyProviderImpl FINAL : public NoBaseWillBeGarbageCollectedFinalized<WorkerGlobalScopeProxyProviderImpl>, public blink::WorkerGlobalScopeProxyProvider {
+class WorkerGlobalScopeProxyProviderImpl FINAL : public NoBaseWillBeGarbageCollectedFinalized<WorkerGlobalScopeProxyProviderImpl>, public WorkerGlobalScopeProxyProvider {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(WorkerGlobalScopeProxyProviderImpl);
     WTF_MAKE_NONCOPYABLE(WorkerGlobalScopeProxyProviderImpl);
 public:
     static PassOwnPtrWillBeRawPtr<WorkerGlobalScopeProxyProviderImpl> create()
     {
         return adoptPtrWillBeNoop(new WorkerGlobalScopeProxyProviderImpl());
     }
 
     virtual ~WorkerGlobalScopeProxyProviderImpl() { }
-    virtual blink::WorkerGlobalScopeProxy* createWorkerGlobalScopeProxy(blink::Worker*) OVERRIDE;
+    virtual WorkerGlobalScopeProxy* createWorkerGlobalScopeProxy(Worker*) OVERRIDE;
 
-    virtual void trace(blink::Visitor* visitor) OVERRIDE { blink::WorkerGlobalScopeProxyProvider::trace(visitor); }
+    virtual void trace(Visitor* visitor) OVERRIDE { WorkerGlobalScopeProxyProvider::trace(visitor); }
 
 private:
     WorkerGlobalScopeProxyProviderImpl() { }
 };
 
 } // namespace blink
 
 #endif // WorkerGlobalScopeProxyProviderImpl_h