Remove all remaining traces of MessageLoopProxy.

content/browser/appcache/chrome_appcache_service.cc

Index: content/browser/appcache/chrome_appcache_service.cc
diff --git a/content/browser/appcache/chrome_appcache_service.cc b/content/browser/appcache/chrome_appcache_service.cc
index 11d107ce5a367369ceaee02f26b566871d20c915..a508c5e0f70ce448d056cf52231d35c4e7336ebf 100644
--- a/content/browser/appcache/chrome_appcache_service.cc
+++ b/content/browser/appcache/chrome_appcache_service.cc
@@ -44,12 +44,10 @@ void ChromeAppCacheService::InitializeOnIOThread(
     set_request_context(request_context_getter->GetURLRequestContext());
 
   // Init our base class.
-  Initialize(
-      cache_path_,
-      BrowserThread::GetMessageLoopProxyForThread(
-          BrowserThread::FILE_USER_BLOCKING)
-          .get(),
-      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE).get());
+  Initialize(cache_path_, BrowserThread::GetTaskRunnerForThread(
+                              BrowserThread::FILE_USER_BLOCKING)
+                              .get(),
+             BrowserThread::GetTaskRunnerForThread(BrowserThread::CACHE).get());
   set_appcache_policy(this);
   set_special_storage_policy(special_storage_policy.get());
 }