Allow AudioManagerCras enumerate audio devices from CRAS not just defaults

media/media.gyp

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'chromium_code': 1,
     # Override to dynamically link the cras (ChromeOS audio) library.
     'use_cras%': 0,
     # Option e.g. for Linux distributions to link pulseaudio directly
@@ skipping 1385 matching lines @@
             'formats/mp2t/es_parser_test_base.h',
             'formats/mp2t/mp2t_stream_parser_unittest.cc',
             'formats/mp2t/timestamp_unroller_unittest.cc',
           ],
         }],
         ['use_x11==1', {
           'dependencies': [
             '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
           ],
         }],
+        ['use_cras==1', {
+          'dependencies': [
+            '../chromeos/chromeos.gyp:chromeos',
+          ],
+          'cflags': [
+            '<!@(<(pkg-config) --cflags libcras)',
+          ],
+          'link_settings': {
+            'libraries': [
+              '<!@(<(pkg-config) --libs libcras)',
+            ],
+          },
+          'defines': [
+            'USE_CRAS',
+          ],
+        }],
       ],
     },
     {
       # GN version: //media:media_perftests
       'target_name': 'media_perftests',
       'type': '<(gtest_target_type)',
       'dependencies': [
         '../base/base.gyp:test_support_base',
         '../testing/gmock.gyp:gmock',
         '../testing/gtest.gyp:gtest',
@@ skipping 902 matching lines @@
                 'dependencies': [
                   '../build/linux/system.gyp:libdrm',
                 ]
               }],
             ],
           }
         ]
     }],
   ],
 }