Enable AudioDecoder unit tests on Android

media/base/BUILD.gn

Index: media/base/BUILD.gn
diff --git a/media/base/BUILD.gn b/media/base/BUILD.gn
index 7e816e3a26ce5798951c1f3dd1ebb5a7f53ee8af..684edfdbbf2c2906a6b72617d348fd65701a45bd 100644
--- a/media/base/BUILD.gn
+++ b/media/base/BUILD.gn
@@ -395,7 +395,6 @@ source_set("unittests") {
     "callback_holder_unittest.cc",
     "channel_mixer_unittest.cc",
     "channel_mixing_matrix_unittest.cc",
-    "container_names_unittest.cc",
     "data_buffer_unittest.cc",
     "decoder_buffer_queue_unittest.cc",
     "decoder_buffer_unittest.cc",
@@ -440,6 +439,10 @@ source_set("unittests") {
     "//testing/gtest",
   ]
 
+  if (media_use_ffmpeg) {

[DaleCurtis, 2016/02/29 23:17:46]

This doesn't require ffmpeg, why the move?

[Tima Vaisburd, 2016/03/01 00:14:22]

Because container_names.h and .cc are conditionally included, see l.233.   I
think the current code does not compile with media_use_ffmpeg=false.

I did not see anything in container_names.* that requires ffmpeg though. Shall
we include them unconditionally?

[DaleCurtis, 2016/03/01 00:16:37]

Yes you should be able to include them unconditionally.

[Tima Vaisburd, 2016/03/01 00:48:55]

Done.

+    sources += [ "container_names_unittest.cc" ]
+  }
+
   # Even if FFmpeg is enabled on Android we don't want these.
   # TODO(watk): Refactor tests that could be made to run on Android.
   if (media_use_ffmpeg && !is_android) {