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

public/platform/WebHTTPLoadInfo.h

Index: public/platform/WebHTTPLoadInfo.h
diff --git a/public/platform/WebHTTPLoadInfo.h b/public/platform/WebHTTPLoadInfo.h
index b2584223ef591bb1a9781f8a2fad2a0f5571881f..4ab65c60f60e8b0df6be29250381454904b607e2 100644
--- a/public/platform/WebHTTPLoadInfo.h
+++ b/public/platform/WebHTTPLoadInfo.h
@@ -35,11 +35,9 @@
 #include "WebPrivatePtr.h"
 
 namespace blink {
-struct ResourceLoadInfo;
-}
 
-namespace blink {
 class WebString;
+struct ResourceLoadInfo;
 
 class WebHTTPLoadInfo {
 public:
@@ -75,12 +73,12 @@ public:
     BLINK_PLATFORM_EXPORT void setResponseHeadersText(const WebString&);
 
 #if INSIDE_BLINK
-    BLINK_PLATFORM_EXPORT WebHTTPLoadInfo(WTF::PassRefPtr<blink::ResourceLoadInfo>);
-    BLINK_PLATFORM_EXPORT operator WTF::PassRefPtr<blink::ResourceLoadInfo>() const;
+    BLINK_PLATFORM_EXPORT WebHTTPLoadInfo(WTF::PassRefPtr<ResourceLoadInfo>);
+    BLINK_PLATFORM_EXPORT operator WTF::PassRefPtr<ResourceLoadInfo>() const;
 #endif
 
 private:
-    WebPrivatePtr<blink::ResourceLoadInfo> m_private;
+    WebPrivatePtr<ResourceLoadInfo> m_private;
 };
 
 } // namespace blink