Moved codec-specific audio packet splitting into decoders.

webrtc/modules/audio_coding/audio_coding.gypi

Index: webrtc/modules/audio_coding/audio_coding.gypi
diff --git a/webrtc/modules/audio_coding/audio_coding.gypi b/webrtc/modules/audio_coding/audio_coding.gypi
index 1e14b7c0641431debef71e051e88ceaae74936e5..a7019f1ab04a457e0648144e8c064116be816f4d 100644
--- a/webrtc/modules/audio_coding/audio_coding.gypi
+++ b/webrtc/modules/audio_coding/audio_coding.gypi
@@ -186,6 +186,26 @@
         'include/audio_coding_module_typedefs.h',
       ],
     },
+    {
+      'target_name': 'audio_coding_utils',

[kwiberg-webrtc, 2016/09/12 02:11:01]

Why not name this split_by_samples?

[ossu, 2016/09/12 11:26:37]

I ... don't know. I thought it might become a place for similar, internal
functionality but this name isn't very good for that either.
I'm not even sure it should be put in a separate build target, but I needed to
put it somewhere. If it's to be kept in a separate target, it should probably be
names split_by_samples for now.

[kwiberg-webrtc, 2016/09/15 13:01:24]

Good. I think we generally have build targets that are too large. Putting single
.cc files in their own build targets probably makes sense in a lot of cases.

+      'type': 'static_library',
+      'dependencies': [
+        '<(webrtc_root)/common.gyp:webrtc_common',
+        'audio_decoder_interface',
+      ],
+      'include_dirs': [
+        '<(webrtc_root)',
+      ],
+      'direct_dependent_settings': {
+        'include_dirs': [
+          '<(webrtc_root)',
+        ],
+      },
+      'sources': [
+        'codecs/split_by_samples.cc',
+        'codecs/split_by_samples.h',
+      ],
+    },
   ],
   'conditions': [
     ['include_opus==1', {