bluetooth: Move connect/disconnect to mojo

third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom

Index: third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom
diff --git a/third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom b/third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom
index 469e6b3d19a6cf0943951cf8b1094ebb5fd46a0d..6818f9bc9526d40203e6cbe6a716c22eb1066d37 100644
--- a/third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom
+++ b/third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom
@@ -97,6 +97,16 @@ interface WebBluetoothService {
   // a device disconnects.
   SetClient(associated WebBluetoothServiceClient client);
 
+  // Creates a GATT Connection to a Bluetooth Device with |device_id| if a
+  // connection to the device didn't exist already. If a GATT connection existed
+  // already then this function increases the ref count to keep that connection

[Jeffrey Yasskin, 2016/05/03 01:15:57]

If the connection already existed, this should also allow the current realm to
call functions that require a connection: https://crbug.com/608538

[ortuno, 2016/05/03 16:11:54]

Should I add a TODO for that issue here?

[Jeffrey Yasskin, 2016/05/03 16:31:32]

Oops, I meant to remove this comment: I think the disconnect enforcement has to
happen on the renderer side because otherwise you could disconnect while the
response is coming back and still get the response. So there's no need to
comment it in the mojo interface.

+  // alive.
+  RemoteServerConnect(string device_id) => (WebBluetoothError error);
+
+  // If a GATT connection exists for Device with |device_id| then decreases
+  // the ref count for that connection.
+  RemoteServerDisconnect(string device_id);
+
   // Returns the first GATT Service with |service_uuid| of a Bluetooth Device
   // with |device_id|.
   RemoteServerGetPrimaryService(