Cleanup namespace usage in public/web/Web[N-Z]*.h.

public/web/WebSpeechRecognitionResult.h

Index: public/web/WebSpeechRecognitionResult.h
diff --git a/public/web/WebSpeechRecognitionResult.h b/public/web/WebSpeechRecognitionResult.h
index 683f71da4bee2728d73917305046a45c87f710f7..29995627f5ac8fa33bf94df71d040b5d640301ee 100644
--- a/public/web/WebSpeechRecognitionResult.h
+++ b/public/web/WebSpeechRecognitionResult.h
@@ -32,10 +32,8 @@
 #include "../platform/WebVector.h"
 
 namespace blink {
-class SpeechRecognitionResult;
-}
 
-namespace blink {
+class SpeechRecognitionResult;
 
 class WebSpeechRecognitionResult {
 public:
@@ -48,11 +46,11 @@ public:
     BLINK_EXPORT void reset();
 
 #if BLINK_IMPLEMENTATION
-    operator blink::SpeechRecognitionResult*() const;
+    operator SpeechRecognitionResult*() const;
 #endif
 
 private:
-    WebPrivatePtr<blink::SpeechRecognitionResult> m_private;
+    WebPrivatePtr<SpeechRecognitionResult> m_private;
 };
 
 } // namespace blink