Fix X11DesktopHandler::ActivateWindow on Unity for known user gestures

content/browser/service_worker/service_worker_provider_host.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/service_worker/service_worker_provider_host.h"
 
 #include "base/guid.h"
 #include "base/stl_util.h"
 #include "content/browser/frame_host/frame_tree.h"
 #include "content/browser/frame_host/frame_tree_node.h"
@@ skipping 32 matching lines @@
     return ServiceWorkerClientInfo();
 
   FrameTreeNode* frame_tree_node = render_frame_host->frame_tree_node();
 
   // Focus the frame in the frame tree node, in case it has changed.
   frame_tree_node->frame_tree()->SetFocusedFrame(frame_tree_node);
 
   // Focus the frame's view to make sure the frame is now considered as focused.
   render_frame_host->GetView()->Focus();
 
-  // Move the web contents to the foreground.
-  web_contents->Activate();
+  // Move the web contents to the foreground. Service Workers only allow focus()
+  // to be called in reponse to a user gesture (e.g. notificationclick event).
+  web_contents->ActivateForUserGesture();
 
   return ServiceWorkerProviderHost::GetWindowClientInfoOnUI(render_process_id,
                                                             render_frame_id);
 }
 
 }  // anonymous namespace
 
 ServiceWorkerProviderHost::OneShotGetReadyCallback::OneShotGetReadyCallback(
     const GetRegistrationForReadyCallback& callback)
     : callback(callback),
@@ skipping 585 matching lines @@
   return context_ != NULL;
 }
 
 void ServiceWorkerProviderHost::Send(IPC::Message* message) const {
   DCHECK(dispatcher_host_);
   DCHECK(IsReadyToSendMessages());
   dispatcher_host_->Send(message);
 }
 
 }  // namespace content