browser: implement multiple permission requesting

content/shell/browser/layout_test/layout_test_permission_manager.cc

Index: content/shell/browser/layout_test/layout_test_permission_manager.cc
diff --git a/content/shell/browser/layout_test/layout_test_permission_manager.cc b/content/shell/browser/layout_test/layout_test_permission_manager.cc
index 58baf70d7d2e1e5d827f8e881aa75a200e00e2d9..e13eff416896ce8620a5e2fb1614d9d5b8c62882 100644
--- a/content/shell/browser/layout_test/layout_test_permission_manager.cc
+++ b/content/shell/browser/layout_test/layout_test_permission_manager.cc
@@ -76,6 +76,27 @@ int LayoutTestPermissionManager::RequestPermission(
   return kNoPendingRequestOrSubscription;
 }
 
+int LayoutTestPermissionManager::RequestPermissions(
+    const std::vector<PermissionType>& permissions,
+    content::RenderFrameHost* render_frame_host,
+    const GURL& requesting_origin,
+    bool user_gesture,
+    const base::Callback<void(
+        const std::vector<PermissionStatus>&)>& callback) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+
+  const GURL& embedding_origin =
+      WebContents::FromRenderFrameHost(render_frame_host)
+          ->GetLastCommittedURL().GetOrigin();
+  std::vector<PermissionStatus> result;
+  for (const auto& permission : permissions) {
+    result.push_back(GetPermissionStatus(
+        permission, requesting_origin, embedding_origin));
+  }
+  callback.Run(result);
+  return kNoPendingRequestOrSubscription;
+}
+
 void LayoutTestPermissionManager::CancelPermissionRequest(int request_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 }