Persist Instance ID data to GCM store.

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/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/compiler_specific.h"
@@ skipping 144 matching lines @@
   return base::Time();
 }
 
 void GCMDriverAndroid::SetLastTokenFetchTime(const base::Time& time) {
   NOTIMPLEMENTED();
 }
 
 void GCMDriverAndroid::WakeFromSuspendForHeartbeat(bool wake) {
 }
 
+InstanceIDStore* GCMDriverAndroid::GetInstanceIDStore() {
+  // Not supported for Android.
+  return NULL;
+}
+
 GCMClient::Result GCMDriverAndroid::EnsureStarted(
     GCMClient::StartMode start_mode) {
   // TODO(johnme): Maybe we should check if GMS is available?
   return GCMClient::SUCCESS;
 }
 
 void GCMDriverAndroid::RegisterImpl(
     const std::string& app_id, const std::vector<std::string>& sender_ids) {
   DCHECK_EQ(1u, sender_ids.size());
   JNIEnv* env = AttachCurrentThread();
@@ skipping 16 matching lines @@
       ConvertUTF8ToJavaString(env, sender_id).Release());
 }
 
 void GCMDriverAndroid::SendImpl(const std::string& app_id,
                                 const std::string& receiver_id,
                                 const GCMClient::OutgoingMessage& message) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace gcm