Enable MidiManagerWinrt by default on Windows 10

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index a543c2e06c1559f81bf7f5c357cdab0d027fd62c..ce9ff6e3160c88f4d49ed7706253c1377ec80473 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -1751,9 +1751,6 @@ const FeatureEntry kFeatureEntries[] = {
      IDS_FLAGS_MERGE_KEY_CHAR_EVENTS_DESCRIPTION, kOsWin,
      ENABLE_DISABLE_VALUE_TYPE(switches::kEnableMergeKeyCharEvents,
                                switches::kDisableMergeKeyCharEvents)},
-    {"use-winrt-midi-api", IDS_FLAGS_USE_WINRT_MIDI_API_NAME,
-     IDS_FLAGS_USE_WINRT_MIDI_API_DESCRIPTION, kOsWin,
-     FEATURE_VALUE_TYPE(media::midi::features::kMidiManagerWinrt)},
 #endif  // OS_WIN
 #if BUILDFLAG(ENABLE_BACKGROUND)
     {"enable-push-api-background-mode", IDS_FLAGS_PUSH_API_BACKGROUND_MODE_NAME,
@@ -2113,6 +2110,11 @@ const FeatureEntry kFeatureEntries[] = {
      IDS_FLAGS_ARC_BOOT_COMPLETED_DESCRIPTION, kOsCrOS,
      FEATURE_VALUE_TYPE(arc::kBootCompletedBroadcastFeature)},
 #endif
+#if defined(OS_WIN)
+    {"disable-winrt-midi-api", IDS_FLAGS_DISABLE_WINRT_MIDI_API_NAME,
+     IDS_FLAGS_DISABLE_WINRT_MIDI_API_DESCRIPTION, kOsWin,
+     SINGLE_DISABLE_VALUE_TYPE(switches::kDisableWinrtMidiApi)},
+#endif  // OS_WIN
     // NOTE: Adding new command-line switches requires adding corresponding
     // entries to enum "LoginCustomFlags" in histograms.xml. See note in
     // histograms.xml and don't forget to run AboutFlagsHistogramTest unit test.