Add PermissionDescriptor to the permissions Mojo interface.

third_party/WebKit/LayoutTests/fast/dom/Geolocation/resources/geolocation-mock.js

 /*
  * geolocation-mock contains a mock implementation of GeolocationService and
  * PermissionService.
  */
 
 "use strict";
 
 let geolocationServiceMock = loadMojoModules(
     'geolocationServiceMock',
     ['device/geolocation/public/interfaces/geolocation.mojom',
@@ skipping 131 matching lines @@
     rejectGeolocationConnections() {
       this.rejectGeolocationConnections_ = true;
     }
 
     /**
      * A mock implementation of PermissionService.requestPermission(). This
      * returns the result set by a call to setGeolocationPermission(), waiting
      * for a call if necessary. Any permission request that is not for
      * geolocation is always denied.
      */
-    requestPermission(permissionName) {
-      if (permissionName != permission.PermissionName.GEOLOCATION)
+    requestPermission(permissionDescriptor) {
+      if (permissionDescriptor.name != permission.PermissionName.GEOLOCATION)
         return Promise.resolve(permissionStatus.PermissionStatus.DENIED);
 
       return new Promise(resolve => {
         if (this.pendingPermissionRequest_)
           this.pendingPermissionRequest_(permissionStatus.PermissionStatus.ASK);
         this.pendingPermissionRequest_ = resolve;
         this.runPermissionCallback_();
       });
     }
 
@@ skipping 13 matching lines @@
     setGeolocationPermission(allowed) {
       this.permissionStatus_ = allowed ?
           permissionStatus.PermissionStatus.GRANTED :
           permissionStatus.PermissionStatus.DENIED;
       this.runPermissionCallback_();
     }
 
   }
   return new GeolocationServiceMock(mojo.frameInterfaces);
 });