[Media] Add user gesture reporting for API calls to midi and media streams.

content/public/test/test_browser_context.cc

Index: content/public/test/test_browser_context.cc
diff --git a/content/public/test/test_browser_context.cc b/content/public/test/test_browser_context.cc
index a708c26a5969f84fc32613c784faa419a3703ade..20b7b8852f66c04dfe1e6344019c185b1ca8dc74 100644
--- a/content/public/test/test_browser_context.cc
+++ b/content/public/test/test_browser_context.cc
@@ -103,6 +103,7 @@ void TestBrowserContext::RequestMidiSysExPermission(
       int render_view_id,
       int bridge_id,
       const GURL& requesting_frame,
+      bool user_gesture,
       const MidiSysExPermissionCallback& callback) {
   // Always reject requests for testing.
   callback.Run(false);