Fix switching to VT2 with mus/mash.

Switching to VT2 on Chrome OS with --mus or --mash was broken on some
boards due to copy and paste errors calling the wrong function.

Bug: 777571, 772023
Change-Id: I4f77ae795bd5cd19b767e6bb9e40c4a28d08c2c3
Reviewed-on: https://chromium-review.googlesource.com/748812Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: kylechar <kylechar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#513160}

ui/display/manager/forwarding_display_delegate.cc

@@ -38,7 +38,7 @@ void ForwardingDisplayDelegate::TakeDisplayControl(
 
 void ForwardingDisplayDelegate::RelinquishDisplayControl(
     const DisplayControlCallback& callback) {
-  delegate_->TakeDisplayControl(callback);
+  delegate_->RelinquishDisplayControl(callback);
 }
 
 void ForwardingDisplayDelegate::GetDisplays(

ui/ozone/platform/drm/host/host_drm_device.cc

@@ -236,7 +236,7 @@ bool HostDrmDevice::GpuRelinquishDisplayControl() {
   auto callback =
       base::BindOnce(&HostDrmDevice::GpuRelinquishDisplayControlCallback,
                      weak_ptr_factory_.GetWeakPtr());
-  drm_device_ptr_->TakeDisplayControl(std::move(callback));
+  drm_device_ptr_->RelinquishDisplayControl(std::move(callback));
   return true;
 }