Cleanup namespace usage in Source/web/*.h

Source/web/ContextFeaturesClientImpl.h

Index: Source/web/ContextFeaturesClientImpl.h
diff --git a/Source/web/ContextFeaturesClientImpl.h b/Source/web/ContextFeaturesClientImpl.h
index 9bc619574dc2b3d904e909c1025be638c62fb21f..8aaefb84a0bbf4d69130e1eb4465637c438b7763 100644
--- a/Source/web/ContextFeaturesClientImpl.h
+++ b/Source/web/ContextFeaturesClientImpl.h
@@ -35,20 +35,20 @@
 
 namespace blink {
 
-class ContextFeaturesClientImpl FINAL : public blink::ContextFeaturesClient {
+class ContextFeaturesClientImpl FINAL : public ContextFeaturesClient {
 public:
     static PassOwnPtr<ContextFeaturesClientImpl> create()
     {
         return adoptPtr(new ContextFeaturesClientImpl());
     }
 
-    virtual bool isEnabled(blink::Document*, blink::ContextFeatures::FeatureType, bool defaultValue) OVERRIDE;
-    virtual void urlDidChange(blink::Document*) OVERRIDE;
+    virtual bool isEnabled(Document*, ContextFeatures::FeatureType, bool defaultValue) OVERRIDE;
+    virtual void urlDidChange(Document*) OVERRIDE;
 
 private:
     ContextFeaturesClientImpl() { }
 
-    bool askIfIsEnabled(blink::Document*, blink::ContextFeatures::FeatureType, bool defaultValue);
+    bool askIfIsEnabled(Document*, ContextFeatures::FeatureType, bool defaultValue);
 };
 
 } // namespace blink