Cleanup namespace usage in Source/web/*.h

Source/web/BackForwardClientImpl.h

Index: Source/web/BackForwardClientImpl.h
diff --git a/Source/web/BackForwardClientImpl.h b/Source/web/BackForwardClientImpl.h
index 5ccba8de2bae58e631a52860cbf05f95ae487ba2..896631da211ace6ff3a8d96a1ffed7bd075ccb48 100644
--- a/Source/web/BackForwardClientImpl.h
+++ b/Source/web/BackForwardClientImpl.h
@@ -34,15 +34,16 @@
 #include "core/page/BackForwardClient.h"
 
 namespace blink {
+
 class WebViewImpl;
 
-class BackForwardClientImpl FINAL : public blink::BackForwardClient {
+class BackForwardClientImpl FINAL : public BackForwardClient {
 public:
     explicit BackForwardClientImpl(WebViewImpl*);
     virtual ~BackForwardClientImpl();
 
 private:
-    // blink::BackForwardList methods:
+    // BackForwardList methods:
     virtual int backListCount() OVERRIDE;
     virtual int forwardListCount() OVERRIDE;
     virtual int backForwardListCount() OVERRIDE;