Remove calls to deprecated MessageLoop methods in components.

components/storage_monitor/media_storage_util_unittest.cc

 // Copyright 2014 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 <string>
 
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 61 matching lines @@
 
   static void PostQuitToUIThread() {
     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
                             base::MessageLoop::QuitWhenIdleClosure());
   }
 
   static void WaitForFileThread() {
     BrowserThread::PostTask(BrowserThread::FILE,
                             FROM_HERE,
                             base::Bind(&PostQuitToUIThread));
-    base::MessageLoop::current()->Run();
+    base::RunLoop().Run();
   }
 
  private:
   content::TestBrowserThreadBundle thread_bundle_;
   TestStorageMonitor* monitor_;
   base::ScopedTempDir scoped_temp_dir_;
 };
 
 // Test to verify that HasDcim() function returns true for the given media
 // device mount point.
@@ skipping 54 matching lines @@
   event.Reset();
   BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
                           base::Bind(&MediaStorageUtil::FilterAttachedDevices,
                                      base::Unretained(&devices), signal_event));
   event.Wait();
 
   EXPECT_TRUE(devices.find(kImageCaptureDeviceId) != devices.end());
 }
 
 }  // namespace storage_monitor