Replace FINAL and OVERRIDE with their C++11 counterparts in Source/core/[fetch|fileapi]

Source/core/fetch/ImageResourceClient.h

Index: Source/core/fetch/ImageResourceClient.h
diff --git a/Source/core/fetch/ImageResourceClient.h b/Source/core/fetch/ImageResourceClient.h
index ffc22c89884a23894c8fdb3b2a1d822b25b3bbd0..b1ce27fdbb4c99ae394b4b97d7d25946702ed0db 100644
--- a/Source/core/fetch/ImageResourceClient.h
+++ b/Source/core/fetch/ImageResourceClient.h
@@ -34,7 +34,7 @@ class ImageResourceClient : public ResourceClient {
 public:
     virtual ~ImageResourceClient() { }
     static ResourceClientType expectedType() { return ImageType; }
-    virtual ResourceClientType resourceClientType() const OVERRIDE FINAL { return expectedType(); }
+    virtual ResourceClientType resourceClientType() const override final { return expectedType(); }
 
     // Called whenever a frame of an image changes, either because we got more data from the network or
     // because we are animating. If not null, the IntRect is the changed rect of the image.