Support getting and deleting token for Instance ID.

components/gcm_driver/gcm_driver_android.cc

Index: components/gcm_driver/gcm_driver_android.cc
diff --git a/components/gcm_driver/gcm_driver_android.cc b/components/gcm_driver/gcm_driver_android.cc
index b5960fcacd6a847f21ea2b38039df6be70f48a39..6f8dd596b4489316b8ede47878aac226d7d4c1ed 100644
--- a/components/gcm_driver/gcm_driver_android.cc
+++ b/components/gcm_driver/gcm_driver_android.cc
@@ -162,7 +162,7 @@ void GCMDriverAndroid::SetLastTokenFetchTime(const base::Time& time) {
 void GCMDriverAndroid::WakeFromSuspendForHeartbeat(bool wake) {
 }
 
-InstanceIDStore* GCMDriverAndroid::GetInstanceIDStore() {
+InstanceIDHandler* GCMDriverAndroid::GetInstanceIDHandler() {
   // Not supported for Android.
   return NULL;
 }