Skip CanvasLowLatency2D on webview

Similar to other tests in the group, this test does not work and should
not be running

Bug: 984352
Change-Id: Ic86b7c73a5ff322a0f70545c327e65fe38f3eaf0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1710709
Auto-Submit: Bo <boliu@chromium.org>
Commit-Queue: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#679591}

content/test/gpu/gpu_tests/test_expectations/pixel_expectations.txt

@@ -59,6 +59,7 @@ crbug.com/805739 [ android-webview-instrumentation ] Pixel_OffscreenCanvasWebGLD
 crbug.com/805739 [ android-webview-instrumentation ] Pixel_OffscreenCanvasWebGLPaintAfterResize [ Skip ]
 crbug.com/805739 [ android-webview-instrumentation ] Pixel_OffscreenCanvasWebglResizeOnWorker [ Skip ]
 crbug.com/805739 [ android-webview-instrumentation ] Pixel_CanvasLowLatencyWebGL [ Skip ]
+crbug.com/805739 [ android-webview-instrumentation ] Pixel_CanvasLowLatency2D [ Skip ]
 
 # Skip test that kills GPU process since Android Webview only supports
 # in-process GPU.