Backed out 1 changesets (bug 1410766) for failing Reftest in reftest/tests/layout/reftests/bugs/409084-1a.html r=backout on a CLOSED TREE.

Backed out changeset 6eac731d5c33 (bug 1410766)

gfx/ipc/GPUParent.cpp

@@ -330,17 +330,6 @@ GPUParent::RecvGetDeviceStatus(GPUDeviceData* aOut)
   return IPC_OK();
 }
 
-mozilla::ipc::IPCResult
-GPUParent::RecvSimulateDeviceReset(GPUDeviceData* aOut)
-{
-#if defined(XP_WIN)
-  DeviceManagerDx::Get()->ForceDeviceReset(ForcedDeviceResetReason::COMPOSITOR_UPDATED);
-  DeviceManagerDx::Get()->MaybeResetAndReacquireDevices();
-#endif
-  RecvGetDeviceStatus(aOut);
-  return IPC_OK();
-}
-
 mozilla::ipc::IPCResult
 GPUParent::RecvNewContentCompositorManager(Endpoint<PCompositorManagerParent>&& aEndpoint)
 {

gfx/ipc/GPUParent.h

@@ -48,7 +48,6 @@ public:
   mozilla::ipc::IPCResult RecvNewContentVRManager(Endpoint<PVRManagerParent>&& aEndpoint) override;
   mozilla::ipc::IPCResult RecvNewContentVideoDecoderManager(Endpoint<PVideoDecoderManagerParent>&& aEndpoint) override;
   mozilla::ipc::IPCResult RecvGetDeviceStatus(GPUDeviceData* aOutStatus) override;
-  mozilla::ipc::IPCResult RecvSimulateDeviceReset(GPUDeviceData* aOutStatus) override;
   mozilla::ipc::IPCResult RecvAddLayerTreeIdMapping(const LayerTreeIdMapping& aMapping) override;
   mozilla::ipc::IPCResult RecvRemoveLayerTreeIdMapping(const LayerTreeIdMapping& aMapping) override;
   mozilla::ipc::IPCResult RecvNotifyGpuObservers(const nsCString& aTopic) override;

gfx/ipc/GPUProcessManager.cpp

@@ -421,10 +421,6 @@ GPUProcessManager::SimulateDeviceReset()
   gfxPlatform::GetPlatform()->CompositorUpdated();
 
   if (mProcess) {
-    GPUDeviceData data;
-    if (mGPUChild->SendSimulateDeviceReset(&data)) {
-      gfxPlatform::GetPlatform()->ImportGPUDeviceData(data);
-    }
     OnRemoteProcessDeviceReset(mProcess);
   } else {
     OnInProcessDeviceReset();

gfx/ipc/PGPU.ipdl

@@ -80,10 +80,6 @@ parent:
   // one is available (i.e., Init has completed).
   sync GetDeviceStatus() returns (GPUDeviceData status);
 
-  // Request to simulate device reset and to get the updated DeviceStatus from
-  // the GPU process. This blocks until one is available (i.e., Init has completed).
-  sync SimulateDeviceReset() returns (GPUDeviceData status);
-
   // Have a message be broadcasted to the GPU process by the GPU process
   // observer service.
   async NotifyGpuObservers(nsCString aTopic);

ipc/ipdl/sync-messages.ini

@@ -930,8 +930,6 @@ description =
 description =
 [PGPU::GetDeviceStatus]
 description =
-[PGPU::SimulateDeviceReset]
-description =
 [PAPZCTreeManager::ReceiveMultiTouchInputEvent]
 description =
 [PAPZCTreeManager::ReceiveMouseInputEvent]