Migrate callers of message_loop_proxy() to task_runner()

mojo/runner/context.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 "mojo/runner/context.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 258 matching lines @@
   return command_line_cwd_.Resolve(path);
 }
 
 bool Context::Init() {
   TRACE_EVENT0("mojo_shell", "Context::Init");
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
 
   EnsureEmbedderIsInitialized();
   task_runners_.reset(
-      new TaskRunners(base::MessageLoop::current()->message_loop_proxy()));
+      new TaskRunners(base::MessageLoop::current()->task_runner()));
 
   // TODO(vtl): Probably these failures should be checked before |Init()|, and
   // this function simply shouldn't fail.
   if (!shell_file_root_.is_valid())
     return false;
   if (!ConfigureURLMappings(command_line, this))
     return false;
 
   // TODO(vtl): This should be MASTER, not NONE.
   embedder::InitIPCSupport(
@@ skipping 86 matching lines @@
     if (app_urls_.empty() && base::MessageLoop::current()->is_running()) {
       DCHECK_EQ(base::MessageLoop::current()->task_runner(),
                 task_runners_->shell_runner());
       base::MessageLoop::current()->Quit();
     }
   }
 }
 
 }  // namespace runner
 }  // namespace mojo