bluetooth: Remove disconnect when page hidden

content/browser/bluetooth/bluetooth_dispatcher_host.cc

Index: content/browser/bluetooth/bluetooth_dispatcher_host.cc
diff --git a/content/browser/bluetooth/bluetooth_dispatcher_host.cc b/content/browser/bluetooth/bluetooth_dispatcher_host.cc
index 71f66c3f8083cded7e21ab6bc9cd23c1b93de6cf..bd0e52ab542c9de0577a865ba2071d7dde9198b5 100644
--- a/content/browser/bluetooth/bluetooth_dispatcher_host.cc
+++ b/content/browser/bluetooth/bluetooth_dispatcher_host.cc
@@ -701,17 +701,6 @@ void BluetoothDispatcherHost::OnGATTServerDisconnect(
   RecordWebBluetoothFunctionCall(
       UMAWebBluetoothFunction::REMOTE_GATT_SERVER_DISCONNECT);
 
-  // Make sure the origin is allowed to access the device. We perform this check

[Jeffrey Yasskin, 2016/04/04 17:06:39]

Add a comment about why we're *not* checking the origin in this call.
Specifically, frames can send a disconnect request after they've started
navigating, and then the GetOrigin() call is invalid. And we have to continue
the execution so that navigating itself disconnects?

[ortuno, 2016/04/04 18:04:11]

Done.

-  // in case a hostile renderer is trying to disconnect a device that the
-  // renderer is not allowed to access.
-  if (allowed_devices_map_.GetDeviceAddress(GetOrigin(frame_routing_id),
-                                            device_id)
-          .empty()) {
-    bad_message::ReceivedBadMessage(
-        this, bad_message::BDH_DEVICE_NOT_ALLOWED_FOR_ORIGIN);
-    return;
-  }
-
   RenderFrameHostImpl* render_frame_host =
       RenderFrameHostImpl::FromID(render_process_id_, frame_routing_id);
   WebContents* web_contents =