Chromecast: virtual/override cleanup.

chromecast/browser/cast_browser_context.cc

Index: chromecast/browser/cast_browser_context.cc
diff --git a/chromecast/browser/cast_browser_context.cc b/chromecast/browser/cast_browser_context.cc
index 5e53167015b461c1e7c2c83f47370ccb4dfe74eb..c1a4437f018963a7c651ec7960b76c6888bc0e22 100644
--- a/chromecast/browser/cast_browser_context.cc
+++ b/chromecast/browser/cast_browser_context.cc
@@ -27,15 +27,15 @@ class CastBrowserContext::CastResourceContext :
   explicit CastResourceContext(
       URLRequestContextFactory* url_request_context_factory) :
     url_request_context_factory_(url_request_context_factory) {}
-  virtual ~CastResourceContext() {}
+  ~CastResourceContext() override {}
 
   // ResourceContext implementation:
-  virtual net::HostResolver* GetHostResolver() override {
+  net::HostResolver* GetHostResolver() override {
     return url_request_context_factory_->GetMainGetter()->
         GetURLRequestContext()->host_resolver();
   }
 
-  virtual net::URLRequestContext* GetRequestContext() override {
+  net::URLRequestContext* GetRequestContext() override {
     return url_request_context_factory_->GetMainGetter()->
         GetURLRequestContext();
   }