Cleanup namespace usage from animation to exported in platform/

Source/platform/exported/WebServiceWorkerProxy.cpp

Index: Source/platform/exported/WebServiceWorkerProxy.cpp
diff --git a/Source/platform/exported/WebServiceWorkerProxy.cpp b/Source/platform/exported/WebServiceWorkerProxy.cpp
index a11d075a07219b3e482737fb9e60918000f0c143..62f25878ce5651bc6b7dade1ba4d01f3a24b9a3f 100644
--- a/Source/platform/exported/WebServiceWorkerProxy.cpp
+++ b/Source/platform/exported/WebServiceWorkerProxy.cpp
@@ -5,16 +5,16 @@
 #include "config.h"
 #include "public/platform/WebServiceWorkerProxy.h"
 
-namespace blink { class ServiceWorker; }
-
 namespace blink {
 
-WebServiceWorkerProxy::WebServiceWorkerProxy(blink::ServiceWorker* serviceWorker)
+class ServiceWorker;
+
+WebServiceWorkerProxy::WebServiceWorkerProxy(ServiceWorker* serviceWorker)
     : m_private(serviceWorker)
 {
 }
 
-blink::ServiceWorker* WebServiceWorkerProxy::unwrap() const
+ServiceWorker* WebServiceWorkerProxy::unwrap() const
 {
     return m_private;
 }