content: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

chrome/browser/media_galleries/fileapi/safe_iapps_library_parser.cc

 // Copyright 2013 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/media_galleries/fileapi/safe_iapps_library_parser.h"
 
 #include "chrome/browser/media_galleries/fileapi/media_file_system_backend.h"
 #include "chrome/common/chrome_utility_messages.h"
 #include "chrome/common/extensions/chrome_utility_extensions_messages.h"
 #include "chrome/grit/generated_resources.h"
@@ skipping 46 matching lines @@
       BrowserThread::IO, FROM_HERE,
       base::Bind(&SafeIAppsLibraryParser::StartProcessOnIOThread, this));
 }
 
 SafeIAppsLibraryParser::~SafeIAppsLibraryParser() {}
 
 void SafeIAppsLibraryParser::StartProcessOnIOThread() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   DCHECK_EQ(INITIAL_STATE, parser_state_);
 
-  scoped_refptr<base::MessageLoopProxy> message_loop_proxy =
+  scoped_refptr<base::SingleThreadTaskRunner> task_runner =
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
   utility_process_host_ =
-      UtilityProcessHost::Create(this, message_loop_proxy.get())->AsWeakPtr();
+      UtilityProcessHost::Create(this, task_runner.get())->AsWeakPtr();
   utility_process_host_->SetName(l10n_util::GetStringUTF16(
       IDS_UTILITY_PROCESS_MEDIA_LIBRARY_FILE_CHECKER_NAME));
   // Wait for the startup notification before sending the main IPC to the
   // utility process, so that we can dup the file handle.
   utility_process_host_->Send(new ChromeUtilityMsg_StartupPing);
   parser_state_ = PINGED_UTILITY_PROCESS_STATE;
 }
 
 void SafeIAppsLibraryParser::OnUtilityProcessStarted() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
@@ skipping 86 matching lines @@
                         OnGotIPhotoLibrary)
 #endif
     IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_GotITunesLibrary,
                         OnGotITunesLibrary)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 }  // namespace iapps