Switch to standard integer types in components/, part 2 of 4.

components/gcm_driver/gcm_delayed_task_controller.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_delayed_task_controller.h"
 
+#include <stddef.h>
+
 #include "base/logging.h"
 
 namespace gcm {
 
 GCMDelayedTaskController::GCMDelayedTaskController() : ready_(false) {
 }
 
 GCMDelayedTaskController::~GCMDelayedTaskController() {
 }
 
@@ skipping 12 matching lines @@
 
 void GCMDelayedTaskController::RunTasks() {
   DCHECK(ready_);
 
   for (size_t i = 0; i < delayed_tasks_.size(); ++i)
     delayed_tasks_[i].Run();
   delayed_tasks_.clear();
 }
 
 }  // namespace gcm