[MIDI] Add a permission bubble client for MIDI system control.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 73bd205772468a26755abe3f092c8fad26e4729c..b52bfcd0cd6ce97f7ab763c2556b3e679751974c 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -13408,6 +13408,9 @@ Some features may be unavailable.  Please check that the profile exists and you
         $1<ex>www.google.com</ex>
       </ph> wants to get full control of your MIDI devices.
     </message>
+    <message name="IDS_MIDI_SYSEX_PERMISSION_FRAGMENT" desc="Permission asked in the permission bubble when a URL wants to access MIDI devices with system exclusive messages, along with other permissions requests. Preceded by the prompt 'This site would like to:'">
+      fully control your MIDI devices.
+    </message>
     <message name="IDS_MIDI_SYSEX_ALLOW_BUTTON" desc="A button in MIDI access infobar for allowing full access to MIDI devices for a given domain.">
       Allow
     </message>