Revert of Disable audio splice frame generation for now.

media/filters/source_buffer_stream.cc

Index: media/filters/source_buffer_stream.cc
diff --git a/media/filters/source_buffer_stream.cc b/media/filters/source_buffer_stream.cc
index b9b8cf711a153d39137309d27619a0821b9d878c..a7d3ecf1f0a86eced8aa80623a3d46c81afc553c 100644
--- a/media/filters/source_buffer_stream.cc
+++ b/media/filters/source_buffer_stream.cc
@@ -965,8 +965,7 @@
   // Handle splices between the existing buffers and the new buffers.  If a
   // splice is generated the timestamp and duration of the first buffer in
   // |new_buffers| will be modified.
-  // TODO(dalecurtis): Disabled until issues 356073, 356545 are fixed.
-  // GenerateSpliceFrame(new_buffers);
+  GenerateSpliceFrame(new_buffers);
 
   base::TimeDelta prev_timestamp = last_appended_buffer_timestamp_;
   bool prev_is_keyframe = last_appended_buffer_is_keyframe_;