Make AVDA fall back to software decoding if needed.

media/base/android/media_codec_bridge.h

Index: media/base/android/media_codec_bridge.h
diff --git a/media/base/android/media_codec_bridge.h b/media/base/android/media_codec_bridge.h
index 892d9c713ef9e24e849c9e3ae454f0efbf1f107d..cf40b40a4504391913d8a3a49771617199d4e3b3 100644
--- a/media/base/android/media_codec_bridge.h
+++ b/media/base/android/media_codec_bridge.h
@@ -174,6 +174,9 @@ class MEDIA_EXPORT MediaCodecBridge {
                                         void* dst,
                                         size_t num);
 
+  // Return true if and only if this is a software codec.

[watk, 2016/06/22 22:39:46]

nit: s/Return/Returns/

(BTW, I wasn't sure if this was in the style guide, so I just checked and it
says: "These comments should be descriptive ("Opens the file") rather than
imperative ("Open the file"))

[liberato (no reviews please), 2016/06/23 15:18:19]

didn't know that, thanks!  someday, i'm going to read that style guide....

+  virtual bool IsSoftwareCodec() = 0;
+
  protected:
   MediaCodecBridge();