Cleanup namespace usage in public/web/Web[A-M]*.h.

public/web/WebGeolocationPosition.h

Index: public/web/WebGeolocationPosition.h
diff --git a/public/web/WebGeolocationPosition.h b/public/web/WebGeolocationPosition.h
index b2ef457755a37c2ae40d0feba777ae86ec217792..6d7e03e329820b87d107a5ca30894698263546ac 100644
--- a/public/web/WebGeolocationPosition.h
+++ b/public/web/WebGeolocationPosition.h
@@ -29,10 +29,10 @@
 #include "../platform/WebCommon.h"
 #include "../platform/WebPrivatePtr.h"
 
-namespace blink { class GeolocationPosition; }
-
 namespace blink {
 
+class GeolocationPosition;
+
 class WebGeolocationPosition {
 public:
     WebGeolocationPosition() {}
@@ -48,13 +48,13 @@ public:
     BLINK_EXPORT void reset();
 
 #if BLINK_IMPLEMENTATION
-    WebGeolocationPosition(blink::GeolocationPosition*);
-    WebGeolocationPosition& operator=(blink::GeolocationPosition*);
-    operator blink::GeolocationPosition*() const;
+    WebGeolocationPosition(GeolocationPosition*);
+    WebGeolocationPosition& operator=(GeolocationPosition*);
+    operator GeolocationPosition*() const;
 #endif
 
 private:
-    WebPrivatePtr<blink::GeolocationPosition> m_private;
+    WebPrivatePtr<GeolocationPosition> m_private;
 };
 
 } // namespace blink