[WebMIDI] Add "use-android-midi-api" flag for Android M+ devices.

chrome/browser/DEPS

 include_rules = [
   "+apps",
   "+ash",
   "+chrome/app",
   "+chrome/chrome_watcher",
   "+chrome/grit",  # For generated headers
   "+chrome/installer",
   "+chrome_elf/blacklist",
   "+chrome_elf/chrome_elf_constants.h",
   "+chrome_elf/create_file",
@@ skipping 117 matching lines @@
   "+extensions/test",
   "+gin",
   "+google/cacheinvalidation",  # Sync invalidation API protobuf files.
   "+google_apis",
   "+google_update",
   "+grit",  # TODO(thestig) Remove. For generated headers
   "+installer_util_strings",  # For generated headers
   "+jni",
   "+media/audio", # For media audio hang monitor.
   "+media/base",  # For media switches
+  "+media/midi",  # For midi switches
   "+mojo/application/public/cpp",
   "+policy",  # For generated headers and source
   "+ppapi/c",  # For various types.
   "+ppapi/host",
   "+ppapi/proxy",
   "+ppapi/shared_impl",
   # Defines some types that are marshalled over IPC.
   "+ppapi/shared_impl/ppp_flash_browser_operations_shared.h",
   "+rlz",
   "+sandbox/win/src",  # The path doesn't say it, but this is the Windows sandbox.
@@ skipping 48 matching lines @@
   "+third_party/WebKit/public/platform/modules/screen_orientation/WebScreenOrientationLockType.h",
   "+third_party/WebKit/public/web/WebCache.h",
   "+third_party/WebKit/public/web/WebContextMenuData.h",
   "+third_party/WebKit/public/web/WebFindOptions.h",
   "+third_party/WebKit/public/web/WebInputEvent.h",
   "+third_party/WebKit/public/web/WebMediaPlayerAction.h",
   "+third_party/WebKit/public/web/WebPluginAction.h",
   "+third_party/WebKit/public/web/WebTextDirection.h",
   "+third_party/WebKit/public/web/WebWindowFeatures.h",
 ]