Support getting and deleting token for Instance ID.

components/gcm_driver/gcm_driver.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.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "components/gcm_driver/gcm_app_handler.h"
 
 namespace gcm {
 
-InstanceIDStore::InstanceIDStore() {
+namespace {
+const size_t kMaxSenders = 100;
+}  // namespace
+
+InstanceIDHandler::InstanceIDHandler() {
 }
 
-InstanceIDStore::~InstanceIDStore() {
+InstanceIDHandler::~InstanceIDHandler() {
 }
 
 GCMDriver::GCMDriver() : weak_ptr_factory_(this) {
 }
 
 GCMDriver::~GCMDriver() {
 }
 
 void GCMDriver::Register(const std::string& app_id,
                          const std::vector<std::string>& sender_ids,
                          const RegisterCallback& callback) {
   DCHECK(!app_id.empty());
-  DCHECK(!sender_ids.empty());
+  DCHECK(!sender_ids.empty() && sender_ids.size() <= kMaxSenders);
   DCHECK(!callback.is_null());
 
   GCMClient::Result result = EnsureStarted(GCMClient::IMMEDIATE_START);
   if (result != GCMClient::SUCCESS) {
     callback.Run(std::string(), result);
     return;
   }
 
   // If previous register operation is still in progress, bail out.
   if (register_callbacks_.find(app_id) != register_callbacks_.end()) {
@@ skipping 202 matching lines @@
     GCMClient::Result result) {
   // Invoke the original unregister callback.
   unregister_callback.Run(result);
 
   // Trigger the pending registration.
   DCHECK(register_callbacks_.find(app_id) != register_callbacks_.end());
   RegisterImpl(app_id, normalized_sender_ids);
 }
 
 }  // namespace gcm