Wire up process launch error codes.

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 "build/build_config.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 219 matching lines @@
   // utility process, and whether the request has been sent at all.
   for (const auto& request : requests)
     OnDecodeImageFailed(request.first);
 }
 
 void ImageDecoder::OnProcessCrashed(int exit_code) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   FailAllRequests();
 }
 
-void ImageDecoder::OnProcessLaunchFailed() {
+void ImageDecoder::OnProcessLaunchFailed(int error_code) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   FailAllRequests();
 }
 
 bool ImageDecoder::OnMessageReceived(const IPC::Message& message) {
   return false;
 }
 
 void ImageDecoder::OnDecodeImageSucceeded(
     const SkBitmap& decoded_image,
@@ skipping 49 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();
 }