Remove duplicate application cpp files in mojo/application.

media/test/BUILD.gn

 # 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.
 
 import("//media/media_options.gni")
 
 source_set("pipeline_integration_test_base") {
   testonly = true
 
   if (media_use_ffmpeg) {
@@ skipping 82 matching lines @@
         "//base",
         "//base/test:test_support",
         "//media",
         "//media:test_support",
         "//media/audio:test_support",
         "//media/base:test_support",
         "//media/mojo/interfaces",
         "//media/mojo/services:media",
         "//media/mojo/services:renderer_proxy",
         "//media/mojo/services:renderer_service",
-        "//mojo/application",
-        "//mojo/application:test_support",
+        "//mojo/application/public/cpp:test_support",
         "//testing/gtest",
         "//ui/gfx/geometry",
         "//ui/gfx:test_support",
 
         # TODO(dalecurtis): Required since the gmock header is included in the
         # header for pipeline_integration_test_base.h.  This should be moved into
         # the .cc file to avoid the extra dependency here.
         "//testing/gmock",
       ]
     }
   }
 }