browser: implement multiple permission requesting

chromecast/browser/cast_permission_manager.cc

Index: chromecast/browser/cast_permission_manager.cc
diff --git a/chromecast/browser/cast_permission_manager.cc b/chromecast/browser/cast_permission_manager.cc
index a0c3280f5d60073dbc91c9132657d389c648b2a5..89f6d26f3688f6d68061637b0d6e013e3e382db4 100644
--- a/chromecast/browser/cast_permission_manager.cc
+++ b/chromecast/browser/cast_permission_manager.cc
@@ -29,6 +29,20 @@ int CastPermissionManager::RequestPermission(
   return kNoPendingRequestOrSubscription;
 }
 
+int CastPermissionManager::RequestPermissions(
+    const std::vector<content::PermissionType>& permissions,
+    content::RenderFrameHost* render_frame_host,
+    const GURL& requesting_origin,
+    bool user_gesture,
+    const base::Callback<void(
+        const std::vector<content::PermissionStatus>&)>& callback) {
+  std::vector<content::PermissionStatus> result;
+  for (int i = 0; i < permissions.size(); ++i)
+    result.push_back(content::PermissionStatus::PERMISSION_STATUS_GRANTED);
+  callback.Run(result);
+  return kNoPendingRequestOrSubscription;
+}
+
 void CastPermissionManager::CancelPermissionRequest(int request_id) {
 }