Mark opacity-responsive-neutral-keyframe.html as no longer flaky

third_party/WebKit/LayoutTests/TestExpectations

Index: third_party/WebKit/LayoutTests/TestExpectations
diff --git a/third_party/WebKit/LayoutTests/TestExpectations b/third_party/WebKit/LayoutTests/TestExpectations
index 0a3f6f0a09a49e5bcd3741f66ba08444bb0280c0..1b4e435d657455fd5e7b6c6f5067214c55377563 100644
--- a/third_party/WebKit/LayoutTests/TestExpectations
+++ b/third_party/WebKit/LayoutTests/TestExpectations
@@ -238,7 +238,6 @@ crbug.com/248938 [ Mac ] virtual/threaded/transitions/transition-end-event-unpre
 crbug.com/513143 virtual/threaded/fast/scroll-behavior/subframe-interrupted-scroll.html [ Failure Pass ]
 crbug.com/248938 virtual/threaded/animations/display-none-terminates-animation.html [ Pass Failure ]
 crbug.com/638693 virtual/threaded/animations/display-inline-style-adjust.html [ Pass Crash Failure ]
-crbug.com/647776 [ Win7 Debug ] virtual/threaded/animations/opacity-responsive-neutral-keyframe.html [ Pass Failure ]
 crbug.com/421283 fast/html/marquee-scrollamount.html [ Pass Failure ]
 crbug.com/248938 [ Win Debug ] virtual/threaded/animations/delay-start-event.html [ Pass Failure ]
 crbug.com/248938 [ Mac Win ] virtual/threaded/transitions/transition-end-event-transform.html [ Pass Failure ]