Remove all remaining traces of MessageLoopProxy.

components/nacl/browser/nacl_browser.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 "components/nacl/browser/nacl_browser.h"
 
 #include <stddef.h>
 
 #include "base/command_line.h"
 #include "base/files/file_proxy.h"
@@ skipping 229 matching lines @@
   EnsureIrtAvailable();
   EnsureValidationCacheAvailable();
 }
 
 // Load the IRT async.
 void NaClBrowser::EnsureIrtAvailable() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
   if (IsOk() && irt_state_ == NaClResourceUninitialized) {
     irt_state_ = NaClResourceRequested;
     // TODO(ncbray) use blocking pool.
-    std::unique_ptr<base::FileProxy> file_proxy(new base::FileProxy(
-        content::BrowserThread::GetMessageLoopProxyForThread(
-            content::BrowserThread::FILE)
-            .get()));
+    std::unique_ptr<base::FileProxy> file_proxy(
+        new base::FileProxy(content::BrowserThread::GetTaskRunnerForThread(
+                                content::BrowserThread::FILE)
+                                .get()));
     base::FileProxy* proxy = file_proxy.get();
     if (!proxy->CreateOrOpen(irt_filepath_,
                              base::File::FLAG_OPEN | base::File::FLAG_READ,
                              base::Bind(&NaClBrowser::OnIrtOpened,
                                         weak_factory_.GetWeakPtr(),
                                         Passed(&file_proxy)))) {
       LOG(ERROR) << "Internal error, NaCl disabled.";
       MarkAsFailed();
     }
   }
@@ skipping 302 matching lines @@
 bool NaClBrowser::IsThrottled() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
   if (crash_times_.size() != kMaxCrashesPerInterval) {
     return false;
   }
   base::TimeDelta delta = base::Time::Now() - crash_times_.front();
   return delta.InSeconds() <= kCrashesIntervalInSeconds;
 }
 
 }  // namespace nacl