Change protoc build rule to not use cygwin bash.

sync/notifier/push_client_channel.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sync/notifier/push_client_channel.h"
 
 #include "base/stl_util.h"
-#include "google/cacheinvalidation/v2/client_gateway.pb.h"
+#include "google/cacheinvalidation/client_gateway.pb.h"
 #include "jingle/notifier/listener/push_client.h"
 
 namespace syncer {
 
 namespace {
 
 const char kBotJid[] = "tango@bot.talk.google.com";
 const char kChannelName[] = "tango_raw";
 
 }  // namespace
@@ skipping 131 matching lines @@
   if (envelope.has_service_context()) {
     *service_context = envelope.service_context();
   }
   if (envelope.has_rpc_scheduling_hash()) {
     *scheduling_hash = envelope.rpc_scheduling_hash();
   }
   return true;
 }
 
 }  // namespace syncer