Web MIDI: add dynamic MidiManager instantiation support for Linux

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 fa2d0fd961eabf48747647882883ed758cf2824f..0ee2121cbdcb86f96cf6e067772dace913e6ff38 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -15560,7 +15560,7 @@ read aloud to screenreader users to announce that a completion is available.">
     <message name="IDS_FLAGS_FASTER_LOCATION_RELOAD_NAME" desc="Name for the flag to enable faster location.reload()" translateable="false">
       Faster location.reload()
     </message>
-     <message name="IDS_FLAGS_FASTER_LOCATION_RELOAD_DESCRIPTION" desc="Description for the flag to enable faster location.reload()" translateable="false">
+    <message name="IDS_FLAGS_FASTER_LOCATION_RELOAD_DESCRIPTION" desc="Description for the flag to enable faster location.reload()" translateable="false">
       Enable faster location.reload() to use a reload mode that revalidates only main resource forcibly.
     </message>
 
@@ -15611,6 +15611,14 @@ read aloud to screenreader users to announce that a completion is available.">
         Enable intermediate certificate fetching when a server does not provide sufficient certificates to build a chain to a trusted root.
       </message>
     </if>
+
+    <!-- Web MIDI supports MIDIManager dynamic instantiation chrome://flags strings -->
+    <message name="IDS_FLAGS_ENABLE_MIDI_MANAGER_DYNAMIC_INSTANTIATION_NAME" desc="Name for the flag to enable MIDIManager dynamic instantiation" translateable="false">
+      MIDIManager dynamic instantiation for Web MIDI.
+    </message>
+    <message name="IDS_FLAGS_ENABLE_MIDI_MANAGER_DYNAMIC_INSTANTIATION_DESCRIPTION" desc="Description for the flag to enable MIDIManager dynamic instantiation" translateable="false">
+      Enable MIDIManager dynamic instantiation for Web MIDI.
+    </message>
   </messages>
  </release>
 </grit>