Recognize codec id vp9.2 as VP9 profile 2

media/base/video_codecs.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/base/video_codecs.h"
 
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
@@ skipping 148 matching lines @@
                            VideoCodecProfile* profile,
                            uint8_t* level_idc) {
   if (codec_id == "vp9" || codec_id == "vp9.0") {
     // Profile is not included in the codec string. Assuming profile 0 to be
     // backward compatible.
     *profile = VP9PROFILE_PROFILE0;
     // Use 0 to indicate unknown level.
     *level_idc = 0;
     return true;
   }
+  if (codec_id == "vp9.2") {

[ddorwin, 2016/12/08 02:08:01]

We need to address https://crbug.com/672240.

+    *profile = VP9PROFILE_PROFILE2;
+    // Use 0 to indicate unknown level.
+    *level_idc = 0;
+    return true;
+  }
   return false;
 }
 
 bool ParseAVCCodecId(const std::string& codec_id,
                      VideoCodecProfile* profile,
                      uint8_t* level_idc) {
   // Make sure we have avc1.xxxxxx or avc3.xxxxxx , where xxxxxx are hex digits
   if (!base::StartsWith(codec_id, "avc1.", base::CompareCase::SENSITIVE) &&
       !base::StartsWith(codec_id, "avc3.", base::CompareCase::SENSITIVE)) {
     return false;
@@ skipping 209 matching lines @@
   if (ParseAVCCodecId(codec_id, &profile, &level))
     return kCodecH264;
 #if BUILDFLAG(ENABLE_HEVC_DEMUXING)
   if (ParseHEVCCodecId(codec_id, &profile, &level))
     return kCodecHEVC;
 #endif
   return kUnknownVideoCodec;
 }
 
 }  // namespace media