Add OVERRIDE to chrome/test/.

chrome/test/webdriver/commands/alert_commands.h

Index: chrome/test/webdriver/commands/alert_commands.h
diff --git a/chrome/test/webdriver/commands/alert_commands.h b/chrome/test/webdriver/commands/alert_commands.h
index cc5c049fa27321d68cda3eb1537c210ccc73c157..d0c856e2e7027583f639e741a2ede7cfc0160813 100644
--- a/chrome/test/webdriver/commands/alert_commands.h
+++ b/chrome/test/webdriver/commands/alert_commands.h
@@ -25,10 +25,10 @@ class AlertTextCommand : public WebDriverCommand {
                    base::DictionaryValue* parameters);
   virtual ~AlertTextCommand();
 
-  virtual bool DoesGet();
-  virtual bool DoesPost();
-  virtual void ExecuteGet(Response* const response);
-  virtual void ExecutePost(Response* const response);
+  virtual bool DoesGet() OVERRIDE;
+  virtual bool DoesPost() OVERRIDE;
+  virtual void ExecuteGet(Response* const response) OVERRIDE;
+  virtual void ExecutePost(Response* const response) OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AlertTextCommand);
@@ -40,8 +40,8 @@ class AcceptAlertCommand : public WebDriverCommand {
                      base::DictionaryValue* parameters);
   virtual ~AcceptAlertCommand();
 
-  virtual bool DoesPost();
-  virtual void ExecutePost(Response* const response);
+  virtual bool DoesPost() OVERRIDE;
+  virtual void ExecutePost(Response* const response) OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AcceptAlertCommand);
@@ -53,8 +53,8 @@ class DismissAlertCommand : public WebDriverCommand {
                       base::DictionaryValue* parameters);
   virtual ~DismissAlertCommand();
 
-  virtual bool DoesPost();
-  virtual void ExecutePost(Response* const response);
+  virtual bool DoesPost() OVERRIDE;
+  virtual void ExecutePost(Response* const response) OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DismissAlertCommand);