Cancel MIDI permission request infobar on MIDIAccess stop.

chrome/test/base/testing_profile.cc

Index: chrome/test/base/testing_profile.cc
diff --git a/chrome/test/base/testing_profile.cc b/chrome/test/base/testing_profile.cc
index bc655aa35e16422210ecc436412b6d3ddb818eef..83de4b47dda01c3d028f0d69c4de14c3b42b2211 100644
--- a/chrome/test/base/testing_profile.cc
+++ b/chrome/test/base/testing_profile.cc
@@ -700,12 +700,20 @@ TestingProfile::GetMediaRequestContextForStoragePartition(
 void TestingProfile::RequestMIDISysExPermission(
       int render_process_id,
       int render_view_id,
+      int bridge_id,
       const GURL& requesting_frame,
       const MIDISysExPermissionCallback& callback) {
   // Always reject requests for testing.
   callback.Run(false);
 }
 
+void TestingProfile::CancelMIDISysExPermissionRequest(
+    int render_process_id,
+    int render_view_id,
+    int bridge_id,
+    const GURL& requesting_frame) {
+}
+
 net::URLRequestContextGetter* TestingProfile::GetRequestContextForExtensions() {
   if (!extensions_request_context_.get())
     extensions_request_context_ = new TestExtensionURLRequestContextGetter();