replace OVERRIDE and FINAL with override and final in chrome/browser/[r-z]*

chrome/browser/search/local_ntp_source.h

Index: chrome/browser/search/local_ntp_source.h
diff --git a/chrome/browser/search/local_ntp_source.h b/chrome/browser/search/local_ntp_source.h
index 2cea84999f2d70f54666d970a96ecc165fd534f7..59ea6f7eb3ad19084d5c4511e0a7d8c34bf8183b 100644
--- a/chrome/browser/search/local_ntp_source.h
+++ b/chrome/browser/search/local_ntp_source.h
@@ -21,16 +21,16 @@ class LocalNtpSource : public content::URLDataSource {
   virtual ~LocalNtpSource();
 
   // Overridden from content::URLDataSource:
-  virtual std::string GetSource() const OVERRIDE;
+  virtual std::string GetSource() const override;
   virtual void StartDataRequest(
       const std::string& path,
       int render_process_id,
       int render_frame_id,
-      const content::URLDataSource::GotDataCallback& callback) OVERRIDE;
-  virtual std::string GetMimeType(const std::string& path) const OVERRIDE;
+      const content::URLDataSource::GotDataCallback& callback) override;
+  virtual std::string GetMimeType(const std::string& path) const override;
   virtual bool ShouldServiceRequest(
-      const net::URLRequest* request) const OVERRIDE;
-  virtual std::string GetContentSecurityPolicyFrameSrc() const OVERRIDE;
+      const net::URLRequest* request) const override;
+  virtual std::string GetContentSecurityPolicyFrameSrc() const override;
 
   // Sends a local resource with a specific |class_name| substituted.
   void SendResourceWithClass(