Replace OVERRIDE and FINAL with override and final in content/shell/[a-s]*

content/shell/browser/shell_browser_context.cc

Index: content/shell/browser/shell_browser_context.cc
diff --git a/content/shell/browser/shell_browser_context.cc b/content/shell/browser/shell_browser_context.cc
index 9b0003bb5af73a4d8388024ca6f92a68c2500f90..7a99e8d7888cb12cf589bd03c3da5ceec59263de 100644
--- a/content/shell/browser/shell_browser_context.cc
+++ b/content/shell/browser/shell_browser_context.cc
@@ -35,11 +35,11 @@ class ShellBrowserContext::ShellResourceContext : public ResourceContext {
   virtual ~ShellResourceContext() {}
 
   // ResourceContext implementation:
-  virtual net::HostResolver* GetHostResolver() OVERRIDE {
+  virtual net::HostResolver* GetHostResolver() override {
     CHECK(getter_);
     return getter_->host_resolver();
   }
-  virtual net::URLRequestContext* GetRequestContext() OVERRIDE {
+  virtual net::URLRequestContext* GetRequestContext() override {
     CHECK(getter_);
     return getter_->GetURLRequestContext();
   }