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

webrtc/media/BUILD.gn

 # Copyright (c) 2016 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.
 
 import("//build/config/linux/pkg_config.gni")
 import("../build/webrtc.gni")
@@ skipping 178 matching lines @@
       "devices/carbonvideorenderer.h",
     ]
     libs += [ "Carbon.framework" ]
   }
   if (is_ios || (is_mac && current_cpu != "x86")) {
     defines += [ "CARBON_DEPRECATED=YES" ]
   }
 
   deps += [
     "..:webrtc_common",
+    "../api:audio_api",
     "../base:rtc_base_approved",
     "../libjingle/xmllite",
     "../libjingle/xmpp",
     "../p2p",
     "../system_wrappers",
     "../voice_engine",
   ]
 }