WebM support for new multipart VP9 string.

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 226ef45acafe41a597c303d82a4d81342fa22772..336fc3e684eca6af491af8c6e5c88a9c5284e643 100644
--- a/media/base/mime_util_unittest.cc
+++ b/media/base/mime_util_unittest.cc
@@ -7,7 +7,10 @@
 #include "base/macros.h"
 #include "base/strings/string_split.h"
 #include "base/strings/stringprintf.h"
+#include "base/test/scoped_command_line.h"
 #include "build/build_config.h"
+#include "media/base/media.h"
+#include "media/base/media_switches.h"
 #include "media/base/mime_util.h"
 #include "media/base/mime_util_internal.h"
 #include "media/media_features.h"
@@ -219,6 +222,18 @@ TEST(MimeUtilTest, SplitCodecsToVector) {
   EXPECT_EQ("mp4a.40.2", codecs_out[1]);
 }
 
+// See deeper string parsing testing in video_codecs_unittests.cc.
+TEST(MimeUtilTest, ExperimentalMultiPartVp9) {
+  base::test::ScopedCommandLine scoped_command_line;
+
+  // Multi-part VP9 string not enabled by default.
+  EXPECT_FALSE(IsSupportedMediaFormat("video/webm", {"vp09.00.01.08"}));
+
+  // Should work if enabled.
+  EnableNewVp9CodecStringSupport();
+  EXPECT_TRUE(IsSupportedMediaFormat("video/webm", {"vp09.00.01.08"}));
+}
+
 TEST(IsCodecSupportedOnAndroidTest, EncryptedCodecsFailWithoutPlatformSupport) {
   // Vary all parameters except |has_platform_decoders|.
   MimeUtil::PlatformInfo states_to_vary = VaryAllFields();