Remove Sync GetPose VRService call, implement VRVSyncProvider

device/vr/vr_device.cc

Index: device/vr/vr_device.cc
diff --git a/device/vr/vr_device.cc b/device/vr/vr_device.cc
index b89fc44c267006b7852abe67a2ff5cd26d7c86d8..26348a4a7c550990248c63c110fb693ebbfd738e 100644
--- a/device/vr/vr_device.cc
+++ b/device/vr/vr_device.cc
@@ -8,6 +8,16 @@
 
 namespace device {
 
+namespace {
+
+void OnVRVSyncProviderClientConnected(
+    const base::Callback<void(mojom::VRVSyncProviderClientPtr)>& callback,
+    device::mojom::VRVSyncProviderClientPtr client) {
+  callback.Run(std::move(client));
+}
+
+}  // namespace
+
 unsigned int VRDevice::next_id_ = 1;
 
 VRDevice::VRDevice() : presenting_display_(nullptr), id_(next_id_) {
@@ -79,6 +89,12 @@ void VRDevice::OnDeactivate(mojom::VRDisplayEventReason reason) {
     display->client()->OnDeactivate(reason);
 }
 
+void VRDevice::OnVRVsyncProviderReady(
+    const base::Callback<void(mojom::VRVSyncProviderClientPtr)>& callback) {
+  presenting_display_->client()->OnVRVsyncProviderReady(
+      base::Bind(&OnVRVSyncProviderClientConnected, callback));
+}
+
 void VRDevice::SetPresentingDisplay(VRDisplayImpl* display) {
   presenting_display_ = display;
 }