Template methods on Timer classes instead of the classes themselves.

chrome/browser/image_decoder.cc

 // Copyright (c) 2012 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/image_decoder.h"
 
 #include "base/bind.h"
 #include "base/thread_task_runner_handle.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/common/chrome_utility_messages.h"
@@ skipping 107 matching lines @@
     // investigation is needed to determine why the utility process
     // is failing to start. See crbug.com/472272
     image_request->task_runner()->PostTask(
         FROM_HERE,
         base::Bind(&ImageDecoder::RunOnDecodeImageFailed, this, request_id));
     return;
   }
 
   if (!batch_mode_timer_) {
     // Created here so it will call StopBatchMode() on the right thread.
-    batch_mode_timer_.reset(new base::DelayTimer<ImageDecoder>(
-        FROM_HERE,
-        base::TimeDelta::FromSeconds(kBatchModeTimeoutSeconds),
-        this,
+    batch_mode_timer_.reset(new base::DelayTimer(
+        FROM_HERE, base::TimeDelta::FromSeconds(kBatchModeTimeoutSeconds), this,
         &ImageDecoder::StopBatchMode));
   }
   batch_mode_timer_->Reset();
 
   switch (image_codec) {
 #if defined(OS_CHROMEOS)
     case ROBUST_JPEG_CODEC:
       utility_process_host_->Send(new ChromeUtilityMsg_RobustJPEGDecodeImage(
           image_data, request_id));
       break;
@@ skipping 141 matching lines @@
     auto it = image_request_id_map_.find(request_id);
     if (it == image_request_id_map_.end())
       return;
     image_request = it->second;
     image_request_id_map_.erase(it);
   }
 
   DCHECK(image_request->task_runner()->RunsTasksOnCurrentThread());
   image_request->OnDecodeImageFailed();
 }