Convert USE_PROPRIETARY_CODECS to a buildflag header.

components/cdm/browser/cdm_message_filter_android.cc

 // Copyright 2014 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 "components/cdm/browser/cdm_message_filter_android.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <vector>
@@ skipping 23 matching lines @@
   CodecType codec_type;
   const char* codec_name;
   const char* container_mime_type;
 };
 
 const CodecInfo kCodecsToQuery[] = {
   {media::EME_CODEC_WEBM_OPUS, CODEC_AUDIO, "opus", "video/webm"},
   {media::EME_CODEC_WEBM_VORBIS, CODEC_AUDIO, "vorbis", "video/webm"},
   {media::EME_CODEC_WEBM_VP8, CODEC_VIDEO, "vp8", "video/webm"},
   {media::EME_CODEC_WEBM_VP9, CODEC_VIDEO, "vp9", "video/webm"},
-#if defined(USE_PROPRIETARY_CODECS)
+#if BUILDFLAG(USE_PROPRIETARY_CODECS)
   {media::EME_CODEC_MP4_AAC, CODEC_AUDIO, "mp4a", "video/mp4"},
   {media::EME_CODEC_MP4_AVC1, CODEC_VIDEO, "avc1", "video/mp4"},
 #if BUILDFLAG(ENABLE_HEVC_DEMUXING)
   {media::EME_CODEC_MP4_HEVC, CODEC_VIDEO, "hvc1", "video/mp4"},
 #endif
-#endif  // defined(USE_PROPRIETARY_CODECS)
+#endif  // BUILDFLAG(USE_PROPRIETARY_CODECS)
 };
 
 static SupportedCodecs GetSupportedCodecs(
     const SupportedKeySystemRequest& request,
     bool video_must_be_compositable) {
   const std::string& key_system = request.key_system;
   SupportedCodecs supported_codecs = media::EME_CODEC_NONE;
 
   for (size_t i = 0; i < arraysize(kCodecsToQuery); ++i) {
     const CodecInfo& info = kCodecsToQuery[i];
@@ skipping 58 matching lines @@
   response->compositing_codecs = GetSupportedCodecs(request, true);
   response->non_compositing_codecs = GetSupportedCodecs(request, false);
 }
 
 void CdmMessageFilterAndroid::OnGetPlatformKeySystemNames(
     std::vector<std::string>* key_systems) {
   *key_systems = MediaDrmBridge::GetPlatformKeySystemNames();
 }
 
 }  // namespace cdm