Add the override annotation to all necessary methods in .../quic/.

net/tools/quic/quic_client.h

Index: net/tools/quic/quic_client.h
diff --git a/net/tools/quic/quic_client.h b/net/tools/quic/quic_client.h
index 25b8cc1f24e31225913d881cc35379b777ac56af..0cbddbef9add1f720057f5b3a9701e7c70f96ec1 100644
--- a/net/tools/quic/quic_client.h
+++ b/net/tools/quic/quic_client.h
@@ -45,7 +45,7 @@ class QuicClient : public EpollCallbackInterface,
              const QuicConfig& config,
              const QuicVersionVector& supported_versions);
 
-  virtual ~QuicClient();
+  virtual ~QuicClient() OVERRIDE;
 
   // Initializes the client to create a connection. Should be called exactly
   // once before calling StartConnect or Connect. Returns true if the
@@ -88,8 +88,9 @@ class QuicClient : public EpollCallbackInterface,
   bool WaitForEvents();
 
   // From EpollCallbackInterface
-  virtual void OnRegistration(
-      EpollServer* eps, int fd, int event_mask) OVERRIDE {}
+  virtual void OnRegistration(EpollServer* eps,
+                              int fd,
+                              int event_mask) OVERRIDE {}
   virtual void OnModification(int fd, int event_mask) OVERRIDE {}
   virtual void OnEvent(int fd, EpollEvent* event) OVERRIDE;
   // |fd_| can be unregistered without the client being disconnected. This