Query LibVPX for VP9 profile support.

media/filters/vpx_video_decoder.cc

Index: media/filters/vpx_video_decoder.cc
diff --git a/media/filters/vpx_video_decoder.cc b/media/filters/vpx_video_decoder.cc
index 5fb9439c5fcb640215e41a9a8169ddd9951d0eeb..932439b7a5f80ba742b8de55c6c68ddb969751dc 100644
--- a/media/filters/vpx_video_decoder.cc
+++ b/media/filters/vpx_video_decoder.cc
@@ -349,6 +349,29 @@ VpxVideoDecoder::~VpxVideoDecoder() {
   DCHECK(!offload_task_runner_);
 }
 
+// static
+bool VpxVideoDecoder::IsVideoConfigSupported(const VideoConfig& config) {
+  if (config.codec != kCodecVP8 && config.codec != kCodecVP9)
+    return false;
+
+  if (config.codec == kCodecVP9) {
+    switch (config.profile) {
+      case VP9PROFILE_PROFILE0:
+      case VP9PROFILE_PROFILE1:
+        return true;
+      case VP9PROFILE_PROFILE2:
+      case VP9PROFILE_PROFILE3: {
+        vpx_codec_caps_t vp9_caps = vpx_codec_get_caps(vpx_codec_vp9_dx());
+        return (vp9_caps & VPX_CODEC_CAP_HIGHBITDEPTH);
+      }
+      default:
+        NOTREACHED();
+    }
+  }
+
+  return false;
+}
+
 std::string VpxVideoDecoder::GetDisplayName() const {
   return "VpxVideoDecoder";
 }