Hook components/gcm_driver up to JNI Generator

components/gcm_driver/gcm_driver_android.cc

+// Copyright 2014 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 "components/gcm_driver/gcm_driver_android.h"
+
+#include "base/compiler_specific.h"
+
+namespace gcm {
+static void Java_GCMDriver_doNothing(JNIEnv* env) ALLOW_UNUSED;
+}  // namespace gcm
+
+// Must come after the ALLOW_UNUSED declaration.
+#include "jni/GCMDriver_jni.h"
+
+namespace gcm {
+
+// static
+bool GCMDriverAndroid::RegisterBindings(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+}  // namespace gcm