browser: implement multiple permission requesting

content/shell/browser/shell_permission_manager.cc

Index: content/shell/browser/shell_permission_manager.cc
diff --git a/content/shell/browser/shell_permission_manager.cc b/content/shell/browser/shell_permission_manager.cc
index da12bdb8f7e1a4b07f3bbaa81d33a4586db9b382..7d242e9db2ab772169ef8727568f4a4226488bfb 100644
--- a/content/shell/browser/shell_permission_manager.cc
+++ b/content/shell/browser/shell_permission_manager.cc
@@ -27,11 +27,23 @@ int ShellPermissionManager::RequestPermission(
   return kNoPendingOperation;
 }
 
-void ShellPermissionManager::CancelPermissionRequest(
-    PermissionType permission,
-    RenderFrameHost* render_frame_host,
-    int request_id,
-    const GURL& requesting_origin) {
+int ShellPermissionManager::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) {
+  std::vector<PermissionStatus> result;
+  for (const auto& permission : permissions) {
+    result.push_back(permission == PermissionType::GEOLOCATION
+        ? PERMISSION_STATUS_GRANTED : PERMISSION_STATUS_DENIED);
+  }
+  callback.Run(result);
+  return kNoPendingOperation;
+}
+
+void ShellPermissionManager::CancelPermissionRequest(int request_id) {
 }
 
 void ShellPermissionManager::ResetPermission(