Remove task.h and finish base::Bind() migration.

chrome/browser/extensions/extension_idle_api.cc

 // Copyright (c) 2011 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/extensions/extension_idle_api.h"
 
 #include <algorithm>
 #include <string>
 #include <map>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/json/json_writer.h"
 #include "base/message_loop.h"
 #include "base/stl_util.h"
-#include "base/task.h"
 #include "base/time.h"
 #include "chrome/browser/extensions/extension_event_router.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/extensions/extension_idle_api_constants.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/extension.h"
 #include "content/browser/renderer_host/render_view_host.h"
 
 namespace keys = extension_idle_api_constants;
@@ skipping 235 matching lines @@
   }
 }
 
 int ExtensionIdleCache::get_min_threshold() {
   return kMinThreshold;
 }
 
 double ExtensionIdleCache::get_throttle_interval() {
   return static_cast<double>(kThrottleInterval);
 }