Introduce Dolby Vision video codec and Demuxer support

media/base/mime_util_unittest.cc

Index: media/base/mime_util_unittest.cc
diff --git a/media/base/mime_util_unittest.cc b/media/base/mime_util_unittest.cc
index 99be40b5d6275b128f28604273bee58aa041eb4e..d957c8ac80887323b76da31f26be88272e849216 100644
--- a/media/base/mime_util_unittest.cc
+++ b/media/base/mime_util_unittest.cc
@@ -111,6 +111,12 @@ static bool HasHevcSupport() {
 #endif  // BUILDFLAG(ENABLE_HEVC_DEMUXING)
 }
 
+// This is to validate MimeUtil::IsCodecSupportedOnPlatform(), which is used
+// only on Android platform.
+static bool HasDolbyVisionSupport() {
+  return false;
+}
+
 TEST(MimeUtilTest, CommonMediaMimeType) {
   EXPECT_TRUE(IsSupportedMediaMimeType("audio/webm"));
   EXPECT_TRUE(IsSupportedMediaMimeType("video/webm"));
@@ -284,6 +290,10 @@ TEST(IsCodecSupportedOnPlatformTest, EncryptedCodecBehavior) {
           case MimeUtil::HEVC:
             EXPECT_EQ(HasHevcSupport(), result);
             break;
+
+          case MimeUtil::DolbyVision:
+            EXPECT_EQ(HasDolbyVisionSupport(), result);
+            break;
         }
       });
 }
@@ -328,6 +338,10 @@ TEST(IsCodecSupportedOnPlatformTest, ClearCodecBehavior) {
           case MimeUtil::HEVC:
             EXPECT_EQ(HasHevcSupport() && info.has_platform_decoders, result);
             break;
+
+          case MimeUtil::DolbyVision:
+            EXPECT_EQ(HasDolbyVisionSupport(), result);
+            break;
         }
       });
 }