Add browser test for AEC dump.

content/content_tests.gypi

 # Copyright (c) 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.
 
 {
   'targets': [
     {
       'target_name': 'test_support_content',
       'type': 'static_library',
       'dependencies': [
@@ skipping 1100 matching lines @@
             }],
             ['OS!="android" and OS!="ios"', {
               # npapi test plugin doesn't build on android or ios
               'dependencies': [
                 # Runtime dependencies
                 'copy_npapi_test_plugin',
               ],
             }],
             ['enable_webrtc==1', {
               'sources': [
+                'browser/media/webrtc_aecdump_browsertest.cc',
                 'browser/media/webrtc_browsertest.cc',
               ],
               'dependencies': [
                 '../testing/perf/perf_test.gyp:perf_test',
               ],
             }],
             ['enable_plugins==0', {
               'sources/': [
                 ['exclude', '^renderer/pepper/'],
               ],
@@ skipping 511 matching lines @@
                   'files': ['<(PRODUCT_DIR)/libnpapi_test_plugin.so'],
                 },
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }