Add OVERRIDE to chrome/browser/.

chrome/browser/spellchecker/spellcheck_message_filter.h

Index: chrome/browser/spellchecker/spellcheck_message_filter.h
diff --git a/chrome/browser/spellchecker/spellcheck_message_filter.h b/chrome/browser/spellchecker/spellcheck_message_filter.h
index cfa942433c2dfc5c42ddc4589cc77b8c1eadbc10..2c0f2ae96e5fc0888e37a3c9643d65bd8895e06f 100644
--- a/chrome/browser/spellchecker/spellcheck_message_filter.h
+++ b/chrome/browser/spellchecker/spellcheck_message_filter.h
@@ -15,10 +15,11 @@ class SpellCheckMessageFilter : public BrowserMessageFilter {
   virtual ~SpellCheckMessageFilter();
 
   // BrowserMessageFilter implementation.
-  virtual void OverrideThreadForMessage(const IPC::Message& message,
-                                        content::BrowserThread::ID* thread);
+  virtual void OverrideThreadForMessage(
+      const IPC::Message& message,
+      content::BrowserThread::ID* thread) OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message,
-                                 bool* message_was_ok);
+                                 bool* message_was_ok) OVERRIDE;
 
  private:
   void OnPlatformCheckSpelling(const string16& word, int tag, bool* correct);