Cleanup namespace usage in Source/binding and Source/web

Source/web/painting/ContinuousPainter.h

Index: Source/web/painting/ContinuousPainter.h
diff --git a/Source/web/painting/ContinuousPainter.h b/Source/web/painting/ContinuousPainter.h
index 3ca12e2e7a3a53f59c6fe976db61a5cf1ce054af..cde9579a75c300ba78d1745c7cbe78cc8c4efb79 100644
--- a/Source/web/painting/ContinuousPainter.h
+++ b/Source/web/painting/ContinuousPainter.h
@@ -31,9 +31,6 @@
 
 namespace blink {
 class GraphicsLayer;
-}
-
-namespace blink {
 class PageOverlayList;
 
 // This class is responsible for calling setNeedsDisplay on all
@@ -43,7 +40,7 @@ public:
     // Calls setNeedsDisplay on the layer, then recursively calls
     // on mask layers, replica layers and all child layers.
     // Overlays are excluded, because they impact the page paint time metric.
-    static void setNeedsDisplayRecursive(blink::GraphicsLayer*, PageOverlayList*);
+    static void setNeedsDisplayRecursive(GraphicsLayer*, PageOverlayList*);
 };
 
 } // namespace blink