RemoteMacViews: Use resize run loop for bridge factory

Bug: 895700
Change-Id: I4d62c1c4550609db7433b3109f920524f8aab77d
Reviewed-on: https://chromium-review.googlesource.com/c/1283948
Commit-Queue: Sidney San Martín <sdy@chromium.org>
Reviewed-by: Sidney San Martín <sdy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600105}

ui/views_bridge_mac/bridge_factory_impl.mm

@@ -67,7 +67,8 @@ BridgeFactoryImpl* BridgeFactoryImpl::Get() {
 
 void BridgeFactoryImpl::BindRequest(
     mojom::BridgeFactoryAssociatedRequest request) {
-  binding_.Bind(std::move(request));
+  binding_.Bind(std::move(request),
+                ui::WindowResizeHelperMac::Get()->task_runner());
 }
 
 void BridgeFactoryImpl::CreateBridgedNativeWidget(