ppapi: implement PPB_AudioEncoder

content/content_renderer.gypi

Index: content/content_renderer.gypi
diff --git a/content/content_renderer.gypi b/content/content_renderer.gypi
index f9cbf85d2ece052065744a82041e3259a8c73a6c..1f3c7cfec08cbbd1ae3167c2515ff4e5ee67d028 100644
--- a/content/content_renderer.gypi
+++ b/content/content_renderer.gypi
@@ -458,6 +458,8 @@
       'renderer/npapi/webplugin_delegate_proxy.h',
       'renderer/npapi/webplugin_impl.cc',
       'renderer/npapi/webplugin_impl.h',
+      'renderer/pepper/audio_encoder_shim.cc',
+      'renderer/pepper/audio_encoder_shim.h',
       'renderer/pepper/audio_helper.cc',
       'renderer/pepper/audio_helper.h',
       'renderer/pepper/content_decryptor_delegate.cc',
@@ -480,6 +482,8 @@
       'renderer/pepper/host_var_tracker.h',
       'renderer/pepper/message_channel.cc',
       'renderer/pepper/message_channel.h',
+      'renderer/pepper/pepper_audio_encoder_host.cc',
+      'renderer/pepper/pepper_audio_encoder_host.h',
       'renderer/pepper/pepper_audio_input_host.cc',
       'renderer/pepper/pepper_audio_input_host.h',
       'renderer/pepper/pepper_broker.cc',
@@ -864,6 +868,7 @@
         '../ppapi/ppapi_internal.gyp:ppapi_proxy',
         '../ppapi/ppapi_internal.gyp:ppapi_shared',
         '../third_party/libyuv/libyuv.gyp:libyuv',
+        '../third_party/opus/opus.gyp:opus',
       ],
     }],
     ['enable_pepper_cdms != 1', {