[GCM] Updates to GCMChannelStatusSyncer - UserAgent and server URL.

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"
 #include "net/base/escape.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_status.h"
 #include "url/gurl.h"
 
 namespace gcm {
 
 namespace {
 
-const char kGCMChannelStatusRequestURL[] =
-    "https://clients4.google.com/chrome-sync/command/";
 const char kRequestContentType[] = "application/octet-stream";
 const char kGCMChannelTag[] = "gcm_channel";
 const int kDefaultPollIntervalSeconds = 60 * 60;  // 60 minutes.
 const int kMinPollIntervalSeconds = 30 * 60;  // 30 minutes.
 
 }  // namespace
 
 GCMChannelStatusRequest::GCMChannelStatusRequest(
     const scoped_refptr<net::URLRequestContextGetter>& request_context_getter,
+    const std::string& channel_status_request_url,
+    const std::string& user_agent,
     const GCMChannelStatusRequestCallback& callback)
     : request_context_getter_(request_context_getter),
+      channel_status_request_url_(channel_status_request_url),
+      user_agent_(user_agent),
       callback_(callback),
       backoff_entry_(&(GetGCMBackoffPolicy())),
       weak_ptr_factory_(this) {
 }
 
 GCMChannelStatusRequest::~GCMChannelStatusRequest() {
 }
 
 // static
 int GCMChannelStatusRequest::default_poll_interval_seconds() {
   return kDefaultPollIntervalSeconds;
 }
 
 // static
 int GCMChannelStatusRequest::min_poll_interval_seconds() {
   return kMinPollIntervalSeconds;
 }
 
 void GCMChannelStatusRequest::Start() {
   DCHECK(!url_fetcher_.get());
 
-  GURL request_url(kGCMChannelStatusRequestURL);
+  GURL request_url(channel_status_request_url_);
 
   gcm_proto::ExperimentStatusRequest proto_data;
   proto_data.add_experiment_name(kGCMChannelTag);
   std::string upload_data;
   DCHECK(proto_data.SerializeToString(&upload_data));
 
   url_fetcher_.reset(
       net::URLFetcher::Create(request_url, net::URLFetcher::POST, this));
   url_fetcher_->SetRequestContext(request_context_getter_.get());
+  url_fetcher_->AddExtraRequestHeader("User-Agent: " + user_agent_);
   url_fetcher_->SetUploadData(kRequestContentType, upload_data);
   url_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
                              net::LOAD_DO_NOT_SAVE_COOKIES);
   url_fetcher_->Start();
 }
 
 void GCMChannelStatusRequest::OnURLFetchComplete(
     const net::URLFetcher* source) {
   if (ParseResponse(source))
     return;
@@ skipping 61 matching lines @@
                    weak_ptr_factory_.GetWeakPtr(),
                    false),
         backoff_entry_.GetTimeUntilRelease());
     return;
   }
 
   Start();
 }
 
 }  // namespace gcm