Add audible support to the copresence API.

components/copresence/handlers/audio/audio_directive_list_unittest.cc

Index: components/copresence/handlers/audio/audio_directive_list_unittest.cc
diff --git a/components/copresence/handlers/audio/audio_directive_list_unittest.cc b/components/copresence/handlers/audio/audio_directive_list_unittest.cc
index f237561b1bc9a32c93e99bdcd872d6bce4f77ef2..4f747ba915ecd716e08e5a796637c615be03a0f7 100644
--- a/components/copresence/handlers/audio/audio_directive_list_unittest.cc
+++ b/components/copresence/handlers/audio/audio_directive_list_unittest.cc
@@ -18,13 +18,15 @@ class AudioDirectiveListTest : public testing::Test {
   AudioDirectiveListTest()
       : directive_list_(new AudioDirectiveList(
             base::Bind(&AudioDirectiveListTest::EncodeToken,
-                       base::Unretained(this)),
+                       base::Unretained(this),
+                       true),
             base::Bind(&base::DoNothing))) {}
 
   virtual ~AudioDirectiveListTest() {}
 
  protected:
   void EncodeToken(const std::string& token,
+                   bool /* audible */,
                    const AudioDirectiveList::SamplesCallback& callback) {
     callback.Run(token, CreateRandomAudioRefCounted(0x1337, 1, 0x7331));
   }