Update pixel test expectations

Pixel_OffscreenCanvas2DResizeOnWorker flaky also on Linux
Correct bug number for Pixel_WorkerRAF_OOPD expectation

TBR=kbr@chromium.org

Bug: 833902, 840394
Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Change-Id: Ie2d90eedc8b16baec2890f09dd8ef96c40293ada
Reviewed-on: https://chromium-review.googlesource.com/1062194
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
Reviewed-by: Fernando Serboncini <fserb@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#559285}

content/test/gpu/gpu_tests/pixel_expectations.py

@@ -95,8 +95,9 @@ class PixelExpectations(GpuTestExpectations):
               ['linux', 'mac', 'win'], bug=744658)
 
     # TODO(fserb): temporarily suppress this test.
-    self.Flaky('Pixel_OffscreenCanvas2DResizeOnWorker', ['mac'], bug=840394)
-    self.Flaky('Pixel_WorkerRAF_OOPD', ['android', 'nvidia'], bug=840394)
+    self.Flaky('Pixel_OffscreenCanvas2DResizeOnWorker',
+        ['linux', 'mac'], bug=840394)
+    self.Fail('Pixel_WorkerRAF_OOPD', ['android', 'nvidia'], bug=833902)
 
     # TODO(kbr): temporary suppression for new test.
     self.Flaky('Pixel_WebGLSadCanvas', ['mac'], bug=575305)