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

Source/core/fetch/XSLStyleSheetResource.h

Index: Source/core/fetch/XSLStyleSheetResource.h
diff --git a/Source/core/fetch/XSLStyleSheetResource.h b/Source/core/fetch/XSLStyleSheetResource.h
index 402052c6cdc20a2ce22c9337ae4b391b3e06c656..4b4e4f498a3fa38dac7ba341dcf2c5b1ab95765e 100644
--- a/Source/core/fetch/XSLStyleSheetResource.h
+++ b/Source/core/fetch/XSLStyleSheetResource.h
@@ -31,16 +31,16 @@
 
 namespace blink {
 
-class XSLStyleSheetResource FINAL : public StyleSheetResource {
+class XSLStyleSheetResource final : public StyleSheetResource {
 public:
     XSLStyleSheetResource(const ResourceRequest&, const String& charset);
 
     const String& sheet() const { return m_sheet; }
 
-    virtual void didAddClient(ResourceClient*) OVERRIDE;
+    virtual void didAddClient(ResourceClient*) override;
 
 protected:
-    virtual void checkNotify() OVERRIDE;
+    virtual void checkNotify() override;
 
     String m_sheet;
 };