Disable CreateAndReleaseOutputSurface test on windows as it's flaky.

ui/compositor/compositor_unittest.cc

Index: ui/compositor/compositor_unittest.cc
diff --git a/ui/compositor/compositor_unittest.cc b/ui/compositor/compositor_unittest.cc
index 1cf3ae2a0a2a90be3f748f109e6c6e081474ab20..1aafddbc10d29776f6ea55dfcf77e23fae84ca61 100644
--- a/ui/compositor/compositor_unittest.cc
+++ b/ui/compositor/compositor_unittest.cc
@@ -94,7 +94,14 @@ TEST_F(CompositorTest, ReleaseWidgetWithOutputSurfaceNeverCreated) {
   compositor()->SetVisible(true);
 }
 
-TEST_F(CompositorTest, CreateAndReleaseOutputSurface) {
+#if defined(OS_WIN)
+// TODO(crbug.com/608436): Flaky on windows trybots
+#define MAYBE_CreateAndReleaseOutputSurface \
+  DISABLED_CreateAndReleaseOutputSurface
+#else
+#define MAYBE_CreateAndReleaseOutputSurface CreateAndReleaseOutputSurface
+#endif
+TEST_F(CompositorTest, MAYBE_CreateAndReleaseOutputSurface) {
   std::unique_ptr<Layer> root_layer(new Layer(ui::LAYER_SOLID_COLOR));
   root_layer->SetBounds(gfx::Rect(10, 10));
   compositor()->SetRootLayer(root_layer.get());