Flip unified media pipeline to default-on w/ disabled holdback.

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 0690f85f73b3c27cdb84d28a2d1bba3e946eaff2..a44f8d1460a9e5d75c829cd527defce29592117d 100644
--- a/media/base/mime_util_unittest.cc
+++ b/media/base/mime_util_unittest.cc
@@ -399,5 +399,20 @@ TEST(IsCodecSupportedOnPlatformTest, OpusOggSupport) {
       });
 }
 
+TEST(IsCodecSupportedOnPlatformTest, HLSDoesNotSupportMPEG2) {

[ddorwin, 2016/03/30 20:16:24]

...AAC

[DaleCurtis, 2016/03/31 22:10:33]

Done.

+  // Vary all parameters; thus use default initial state.
+  MimeUtil::PlatformInfo states_to_vary = VaryAllFields();
+  MimeUtil::PlatformInfo test_states;
+
+  RunCodecSupportTest(
+      states_to_vary, test_states,
+      [](const MimeUtil::PlatformInfo& info, MimeUtil::Codec codec) {
+        EXPECT_FALSE(MimeUtil::IsCodecSupportedOnPlatform(
+            MimeUtil::MPEG2_AAC, "application/x-mpegurl", false, info));
+        EXPECT_FALSE(MimeUtil::IsCodecSupportedOnPlatform(
+            MimeUtil::MPEG2_AAC, "application/vnd.apple.mpegurl", false, info));
+      });
+}
+
 }  // namespace internal
 }  // namespace media