replace OVERRIDE and FINAL with override and final in ipc/

ipc/ipc_channel_factory.cc

Index: ipc/ipc_channel_factory.cc
diff --git a/ipc/ipc_channel_factory.cc b/ipc/ipc_channel_factory.cc
index 4cb1790382462f250ba0cca3ed9fd836553f08e0..f553203b1238cdc8ff2b78f913714afd03b7e6fe 100644
--- a/ipc/ipc_channel_factory.cc
+++ b/ipc/ipc_channel_factory.cc
@@ -15,12 +15,12 @@ class PlatformChannelFactory : public ChannelFactory {
       : handle_(handle), mode_(mode) {
   }
 
-  virtual std::string GetName() const OVERRIDE {
+  virtual std::string GetName() const override {
     return handle_.name;
   }
 
   virtual scoped_ptr<Channel> BuildChannel(
-      Listener* listener) OVERRIDE {
+      Listener* listener) override {
     return Channel::Create(handle_, mode_, listener);
   }