[GCM] API update to allow only a single sender in registration

chrome/browser/services/gcm/fake_gcm_profile_service.cc

 // Copyright 2013 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 "chrome/browser/services/gcm/fake_gcm_profile_service.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/browser_context.h"
 
 namespace gcm {
 
 // static
 BrowserContextKeyedService* FakeGCMProfileService::Build(
     content::BrowserContext* context) {
   Profile* profile = static_cast<Profile*>(context);
   return new FakeGCMProfileService(profile);
 }
 
 FakeGCMProfileService::FakeGCMProfileService(Profile* profile)
     : GCMProfileService(profile),
       collect_(false) {}
 
 FakeGCMProfileService::~FakeGCMProfileService() {}
 
 void FakeGCMProfileService::Register(const std::string& app_id,
-                                     const std::vector<std::string>& sender_ids,
+                                     const std::string& sender_id,
                                      const std::string& cert,
                                      RegisterCallback callback) {
   base::MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&FakeGCMProfileService::RegisterFinished,
                  base::Unretained(this),
                  app_id,
-                 sender_ids,
+                 sender_id,
                  cert,
                  callback));
 }
 
 void FakeGCMProfileService::RegisterFinished(
     const std::string& app_id,
-    const std::vector<std::string>& sender_ids,
+    const std::string& sender_id,
     const std::string& cert,
     RegisterCallback callback) {
   if (collect_) {
     last_registered_app_id_ = app_id;
-    last_registered_sender_ids_ = sender_ids;
+    last_registered_sender_id_ = sender_id;
     last_registered_cert_ = cert;
   }
 
-  callback.Run(base::UintToString(sender_ids.size()), GCMClient::SUCCESS);
+  callback.Run(base::UintToString(sender_id.size()), GCMClient::SUCCESS);
 }
 
 void FakeGCMProfileService::Send(const std::string& app_id,
                                  const std::string& receiver_id,
                                  const GCMClient::OutgoingMessage& message,
                                  SendCallback callback) {
   base::MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&FakeGCMProfileService::SendFinished,
                  base::Unretained(this),
@@ skipping 10 matching lines @@
     SendCallback callback) {
   if (collect_) {
     last_sent_message_ = message;
     last_receiver_id_ = receiver_id;
   }
 
   callback.Run(message.id, GCMClient::SUCCESS);
 }
 
 }  // namespace gcm