Add 'cbcs' encryption scheme support in Android media.

media/gpu/vt_video_decode_accelerator_mac.cc

Index: media/gpu/vt_video_decode_accelerator_mac.cc
diff --git a/media/gpu/vt_video_decode_accelerator_mac.cc b/media/gpu/vt_video_decode_accelerator_mac.cc
index b700c1140105372c72eee16c3fd2b8764502ca21..a37de44773ba9941109e7f32532aed7bd0d1eea5 100644
--- a/media/gpu/vt_video_decode_accelerator_mac.cc
+++ b/media/gpu/vt_video_decode_accelerator_mac.cc
@@ -327,7 +327,7 @@ bool VTVideoDecodeAccelerator::Initialize(const Config& config,
     return false;
   }
 
-  if (config.is_encrypted) {
+  if (config.is_encrypted()) {
     NOTREACHED() << "Encrypted streams are not supported for this VDA";
     return false;
   }