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

public/platform/WebData.h

Index: public/platform/WebData.h
diff --git a/public/platform/WebData.h b/public/platform/WebData.h
index 5630c71d162cd4a494b1f62abc7b0907dc9cf4b5..528a2e0afe0726d2200feaa7171b38abd43af86e 100644
--- a/public/platform/WebData.h
+++ b/public/platform/WebData.h
@@ -34,10 +34,9 @@
 #include "WebCommon.h"
 #include "WebPrivatePtr.h"
 
-namespace blink { class SharedBuffer; }
-
 namespace blink {
 
+class SharedBuffer;
 class WebDataPrivate;
 
 // A container for raw bytes.  It is inexpensive to copy a WebData object.
@@ -80,9 +79,9 @@ public:
     bool isNull() const { return m_private.isNull(); }
 
 #if INSIDE_BLINK
-    WebData(const PassRefPtr<blink::SharedBuffer>&);
-    WebData& operator=(const PassRefPtr<blink::SharedBuffer>&);
-    operator PassRefPtr<blink::SharedBuffer>() const;
+    WebData(const PassRefPtr<SharedBuffer>&);
+    WebData& operator=(const PassRefPtr<SharedBuffer>&);
+    operator PassRefPtr<SharedBuffer>() const;
 #else
     template <class C>
     WebData(const C& c)
@@ -99,7 +98,7 @@ public:
 #endif
 
 private:
-    WebPrivatePtr<blink::SharedBuffer> m_private;
+    WebPrivatePtr<SharedBuffer> m_private;
 };
 
 } // namespace blink