replace OVERRIDE and FINAL with override and final in ipc/

ipc/mojo/ipc_channel_mojo.cc

Index: ipc/mojo/ipc_channel_mojo.cc
diff --git a/ipc/mojo/ipc_channel_mojo.cc b/ipc/mojo/ipc_channel_mojo.cc
index d3a9f79d05092afa54a5dbd6303e2244e4f7ea9e..791a97026ab3150f03282c7b0e9b146700ee84a6 100644
--- a/ipc/mojo/ipc_channel_mojo.cc
+++ b/ipc/mojo/ipc_channel_mojo.cc
@@ -27,11 +27,11 @@ class MojoChannelFactory : public ChannelFactory {
                      Channel::Mode mode)
       : delegate_(delegate), channel_handle_(channel_handle), mode_(mode) {}
 
-  virtual std::string GetName() const OVERRIDE {
+  virtual std::string GetName() const override {
     return channel_handle_.name;
   }
 
-  virtual scoped_ptr<Channel> BuildChannel(Listener* listener) OVERRIDE {
+  virtual scoped_ptr<Channel> BuildChannel(Listener* listener) override {
     return ChannelMojo::Create(delegate_, channel_handle_, mode_, listener)
         .PassAs<Channel>();
   }