Mechanical change of base::Time to base::TimeTicks in the component updater.

components/update_client/update_engine.h

 // Copyright 2015 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.
 
 #ifndef COMPONENTS_UPDATE_CLIENT_UPDATE_ENGINE_H_
 #define COMPONENTS_UPDATE_CLIENT_UPDATE_ENGINE_H_
 
 #include <list>
 #include <memory>
 #include <queue>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/threading/thread_checker.h"
 #include "components/update_client/action.h"
 #include "components/update_client/component_patcher_operation.h"
 #include "components/update_client/crx_downloader.h"
 #include "components/update_client/crx_update_item.h"
 #include "components/update_client/ping_manager.h"
 #include "components/update_client/update_checker.h"
 #include "components/update_client/update_client.h"
 
 namespace base {
+class TimeTicks;
 class SequencedTaskRunner;
 class SingleThreadTaskRunner;
 }  // namespace base
 
 namespace update_client {
 
 class Configurator;
 struct CrxUpdateItem;
 struct UpdateContext;
 
@@ skipping 44 matching lines @@
   // Called when CRX state changes occur.
   const NotifyObserversCallback notify_observers_callback_;
 
   // Contains the contexts associated with each update in progress.
   std::set<UpdateContext*> update_contexts_;
 
   // Implements a rate limiting mechanism for background update checks. Has the
   // effect of rejecting the update call if the update call occurs before
   // a certain time, which is negotiated with the server as part of the
   // update protocol. See the comments for X-Retry-After header.
-  base::Time throttle_updates_until_;
+  base::TimeTicks throttle_updates_until_;
 
   DISALLOW_COPY_AND_ASSIGN(UpdateEngine);
 };
 
 // TODO(sorin): consider making this a ref counted type.
 struct UpdateContext {
   UpdateContext(
       const scoped_refptr<Configurator>& config,
       bool is_foreground,
       const std::vector<std::string>& ids,
@@ skipping 48 matching lines @@
   // Contains the ids of the items to update.
   std::queue<std::string> queue;
 
   // The time in seconds to wait until doing further update checks.
   int retry_after_sec_;
 };
 
 }  // namespace update_client
 
 #endif  // COMPONENTS_UPDATE_CLIENT_UPDATE_ENGINE_H_