Standardize usage of virtual/override/final in content/browser/

content/browser/fileapi/fileapi_message_filter.h

Index: content/browser/fileapi/fileapi_message_filter.h
diff --git a/content/browser/fileapi/fileapi_message_filter.h b/content/browser/fileapi/fileapi_message_filter.h
index 2506eed4a6a8034e2a7b92abd360763a965f161d..297213d722db42c8f7488a2499d66f197c9ce390 100644
--- a/content/browser/fileapi/fileapi_message_filter.h
+++ b/content/browser/fileapi/fileapi_message_filter.h
@@ -73,16 +73,16 @@ class CONTENT_EXPORT FileAPIMessageFilter : public BrowserMessageFilter {
                        StreamContext* stream_context);
 
   // BrowserMessageFilter implementation.
-  virtual void OnChannelConnected(int32 peer_pid) override;
-  virtual void OnChannelClosing() override;
-  virtual base::TaskRunner* OverrideTaskRunnerForMessage(
+  void OnChannelConnected(int32 peer_pid) override;
+  void OnChannelClosing() override;
+  base::TaskRunner* OverrideTaskRunnerForMessage(
       const IPC::Message& message) override;
-  virtual bool OnMessageReceived(const IPC::Message& message) override;
+  bool OnMessageReceived(const IPC::Message& message) override;
 
  protected:
-  virtual ~FileAPIMessageFilter();
+  ~FileAPIMessageFilter() override;
 
-  virtual void BadMessageReceived() override;
+  void BadMessageReceived() override;
 
  private:
   typedef storage::FileSystemOperationRunner::OperationID OperationID;