Replace OVERRIDE and FINAL with override and final in content/shell/[a-s]*

content/shell/browser/shell_message_filter.h

Index: content/shell/browser/shell_message_filter.h
diff --git a/content/shell/browser/shell_message_filter.h b/content/shell/browser/shell_message_filter.h
index 06e1a546ed8dfce61267666f1319bce9997db55d..6f501d4b487a6b95473ee7260b6a37272734f2ba 100644
--- a/content/shell/browser/shell_message_filter.h
+++ b/content/shell/browser/shell_message_filter.h
@@ -40,8 +40,8 @@ class ShellMessageFilter : public BrowserMessageFilter {
 
   // BrowserMessageFilter implementation.
   virtual void OverrideThreadForMessage(const IPC::Message& message,
-                                        BrowserThread::ID* thread) OVERRIDE;
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+                                        BrowserThread::ID* thread) override;
+  virtual bool OnMessageReceived(const IPC::Message& message) override;
 
   void OnReadFileToString(const base::FilePath& local_file,
                           std::string* contents);