Cleanup namespace usage in public/platform/{Web[P-W]*,linux/*}.h

public/platform/WebStorageQuotaCallbacks.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 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebStorageQuotaCallbacks_h
 #define WebStorageQuotaCallbacks_h
 
 #include "WebCommon.h"
 #include "WebPrivatePtr.h"
 #include "WebStorageQuotaError.h"
 
-namespace blink {
-class StorageQuotaCallbacks;
-}
-
 namespace WTF { template <typename T> class PassOwnPtr; }
 
 namespace blink {
 
+class StorageQuotaCallbacks;
 class WebStorageQuotaCallbacksPrivate;
 
 class WebStorageQuotaCallbacks {
 public:
     ~WebStorageQuotaCallbacks() { reset(); }
     WebStorageQuotaCallbacks() { }
     WebStorageQuotaCallbacks(const WebStorageQuotaCallbacks& c) { assign(c); }
     WebStorageQuotaCallbacks& operator=(const WebStorageQuotaCallbacks& c)
     {
         assign(c);
         return *this;
     }
 
     BLINK_PLATFORM_EXPORT void reset();
     BLINK_PLATFORM_EXPORT void assign(const WebStorageQuotaCallbacks&);
 
 #if INSIDE_BLINK
-    BLINK_PLATFORM_EXPORT WebStorageQuotaCallbacks(const WTF::PassOwnPtr<blink::StorageQuotaCallbacks>&);
+    BLINK_PLATFORM_EXPORT WebStorageQuotaCallbacks(const WTF::PassOwnPtr<StorageQuotaCallbacks>&);
 #endif
 
     // Callback for WebFrameClient::queryStorageUsageAndQuota.
     BLINK_PLATFORM_EXPORT void didQueryStorageUsageAndQuota(unsigned long long usageInBytes, unsigned long long quotaInBytes);
 
     // Callback for WebFrameClient::requestStorageQuota.
     // This may return a smaller amount of quota than the requested.
     BLINK_PLATFORM_EXPORT void didGrantStorageQuota(unsigned long long usageInBytes, unsigned long long grantedQuotaInBytes);
 
     BLINK_PLATFORM_EXPORT void didFail(WebStorageQuotaError);
 
 private:
     WebPrivatePtr<WebStorageQuotaCallbacksPrivate> m_private;
 };
 
 } // namespace blink
 
 #endif // WebStorageQuotaCallbacks_h