Move webrtc/audio_*.h to webrtc/api/call

webrtc/api/api.gyp

 # Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 {
   'includes': [ '../build/common.gypi', ],
@@ skipping 105 matching lines @@
 
             ],
           },
           'includes': ['../../build/java.gypi'],
         }, # libjingle_peerconnection_java
       ]
     }],
   ],  # conditions
   'targets': [
     {
+      'target_name': 'audio_api',
+      'type': 'static_library',
+      'dependencies': [
+        # TODO(kjellander): Add remaining dependencies when webrtc:4243 is done.
+        '<(webrtc_root)/base/base.gyp:rtc_base_approved',
+        '<(webrtc_root)/common.gyp:webrtc_common',
+        '<(webrtc_root)/modules/modules.gyp:audio_encoder_interface',
+      ],
+      'sources': [
+        'audio/audio_receive_stream.h',
+        'audio/audio_send_stream.h',
+        'audio/audio_sink.h',
+        'audio/audio_state.h',
+      ],
+    },
+    {
       'target_name': 'libjingle_peerconnection',
       'type': 'static_library',
       'dependencies': [
+        ':audio_api',
         '<(webrtc_root)/media/media.gyp:rtc_media',
         '<(webrtc_root)/pc/pc.gyp:rtc_pc',
       ],
       'sources': [
         'audiotrack.cc',
         'audiotrack.h',
         'datachannel.cc',
         'datachannel.h',
         'datachannelinterface.h',
         'dtlsidentitystore.h',
@@ skipping 105 matching lines @@
             'quicdatatransport.h',
           ],
           'export_dependent_settings': [
             '<(DEPTH)/third_party/libquic/libquic.gyp:libquic',
           ],
         }],
       ],
     },  # target libjingle_peerconnection
   ],  # targets
 }