Update layout test expectations for two tests.

TBR=qyearsley@chromium.org,treib@chromium.org,sfiera@chromium.org

Bug: 805756, 808153
Change-Id: Id7e8b218cf37d51c7ef0d6cd34b2abe6bd9d1be2
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/897236Reviewed-by: Yuta Kitamura <yutak@chromium.org>
Commit-Queue: Yuta Kitamura <yutak@chromium.org>
Cr-Commit-Position: refs/heads/master@{#533982}

third_party/WebKit/LayoutTests/SlowTests

@@ -476,3 +476,5 @@ crbug.com/800359 external/wpt/mimesniff/mime-types/parsing.any.html [ Slow ]
 crbug.com/800359 external/wpt/mimesniff/mime-types/parsing.any.worker.html [ Slow ]
 
 crbug.com/808185 [ Win Release ] http/tests/devtools/editor/text-editor-ctrl-d-1.js [ Slow ]
+
+crbug.com/808153 fast/webgl/texImage-imageBitmap-from-blob-resize.html [ Slow ]

third_party/WebKit/LayoutTests/TestExpectations

@@ -2785,6 +2785,9 @@ crbug.com/749738 [ Win7 Debug ] http/tests/devtools/editor/text-editor-word-jump
 # Sheriff failures 2017-07-28
 crbug.com/749738 [ Win7 Debug ] http/tests/devtools/console/console-format-es6-2.js [ Timeout ]
 
+# Sheriff failures 2017-08-04
+crbug.com/626703 [ Win7 Release ] external/wpt/html/semantics/tabular-data/processing-model-1/span-limits.html [ Timeout ]
+
 # Sheriff failure 2017-08-07
 crbug.com/708499 [ Linux ] virtual/wheelscrolllatching/fast/compositor-wheel-scroll-latching/touchpad-scroll-impl-to-main.html [ Failure Pass ]