Reland: Add GCMChannelStatusSyncer to schedule requests and enable/disable GCM

components/gcm_driver/gcm_channel_status_request.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_channel_status_request.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "components/gcm_driver/gcm_backoff_policy.h"
 #include "components/gcm_driver/proto/gcm_channel_status.pb.h"
@@ skipping 23 matching lines @@
     : request_context_getter_(request_context_getter),
       callback_(callback),
       backoff_entry_(&(GetGCMBackoffPolicy())),
       weak_ptr_factory_(this) {
 }
 
 GCMChannelStatusRequest::~GCMChannelStatusRequest() {
 }
 
 // static
-int GCMChannelStatusRequest::default_poll_interval_seconds_for_testing() {
+int GCMChannelStatusRequest::default_poll_interval_seconds() {
   return kDefaultPollIntervalSeconds;
 }
 
 // static
-int GCMChannelStatusRequest::min_poll_interval_seconds_for_testing() {
+int GCMChannelStatusRequest::min_poll_interval_seconds() {
   return kMinPollIntervalSeconds;
 }
 
 void GCMChannelStatusRequest::Start() {
   DCHECK(!url_fetcher_.get());
 
   GURL request_url(kGCMChannelStatusRequestURL);
 
   gcm_proto::ExperimentStatusRequest proto_data;
   proto_data.add_experiment_name(kGCMChannelTag);
@@ skipping 77 matching lines @@
                    weak_ptr_factory_.GetWeakPtr(),
                    false),
         backoff_entry_.GetTimeUntilRelease());
     return;
   }
 
   Start();
 }
 
 }  // namespace gcm