Bug 1143806: Tolerate timeouts occurring if a device driver is in the process of resetting. r=jrmuizel

gfx/layers/d3d11/TextureD3D11.cpp

@@ -1014,6 +1014,10 @@ SyncObjectD3D11::FinalizeFrame()
     hr = mutex->AcquireSync(0, 20000);
 
     if (hr == WAIT_TIMEOUT) {
+      if (gfxWindowsPlatform::GetPlatform()->DidRenderingDeviceReset()) {
+        gfxWarning() << "AcquireSync timed out because of device reset.";
+        return;
+      }
       MOZ_CRASH();
     }
 
@@ -1038,6 +1042,10 @@ SyncObjectD3D11::FinalizeFrame()
     hr = mutex->AcquireSync(0, 20000);
 
     if (hr == WAIT_TIMEOUT) {
+      if (gfxWindowsPlatform::GetPlatform()->DidRenderingDeviceReset()) {
+        gfxWarning() << "AcquireSync timed out because of device reset.";
+        return;
+      }
       MOZ_CRASH();
     }