replace OVERRIDE and FINAL with override and final in chrome/browser/extensions/

chrome/browser/extensions/external_install_error.h

Index: chrome/browser/extensions/external_install_error.h
diff --git a/chrome/browser/extensions/external_install_error.h b/chrome/browser/extensions/external_install_error.h
index ff65e498a3f97f801bc20273be76fa2ef53125d4..d56fdf5683b44b0c2ea4e76009dd8c5777a78322 100644
--- a/chrome/browser/extensions/external_install_error.h
+++ b/chrome/browser/extensions/external_install_error.h
@@ -51,8 +51,8 @@ class ExternalInstallError : public ExtensionInstallPrompt::Delegate,
   virtual ~ExternalInstallError();
 
   // ExtensionInstallPrompt::Delegate implementation.
-  virtual void InstallUIProceed() OVERRIDE;
-  virtual void InstallUIAbort(bool user_initiated) OVERRIDE;
+  virtual void InstallUIProceed() override;
+  virtual void InstallUIAbort(bool user_initiated) override;
 
   // Show the associated dialog. This should only be called once the dialog is
   // ready.
@@ -66,11 +66,11 @@ class ExternalInstallError : public ExtensionInstallPrompt::Delegate,
 
  private:
   // WebstoreDataFetcherDelegate implementation.
-  virtual void OnWebstoreRequestFailure() OVERRIDE;
+  virtual void OnWebstoreRequestFailure() override;
   virtual void OnWebstoreResponseParseSuccess(
-      scoped_ptr<base::DictionaryValue> webstore_data) OVERRIDE;
+      scoped_ptr<base::DictionaryValue> webstore_data) override;
   virtual void OnWebstoreResponseParseFailure(
-      const std::string& error) OVERRIDE;
+      const std::string& error) override;
 
   // Called when data fetching has completed (either successfully or not).
   void OnFetchComplete();