Re-enable some virtual/gpu-rasterization color profile tests

THe tests were marked as flakey after an unexplained increase in
flakiness plus some uncertainty about the baselines. So this
patch rebaselines them and re-enables since we have reason to
believe the flakiness has been addressed.

TBR=wangxianzhu@chromium.org
BUG=638942

Review-Url: https://codereview.chromium.org/2274573006
Cr-Commit-Position: refs/heads/master@{#414485}

third_party/WebKit/LayoutTests/TestExpectations

@@ -82,10 +82,6 @@ crbug.com/624709 [ Win ] virtual/gpu-rasterization/fast/images/webp-color-profil
 crbug.com/587737 [ Mac10.11 Retina ] virtual/gpu-rasterization/fast/images/color-profile-filter.html [ Timeout Failure ]
 crbug.com/603728 [ Linux ] virtual/gpu-rasterization/fast/images/color-profile-filter.html [ Failure Timeout Pass ]
 crbug.com/624233 [ Win ] virtual/gpu-rasterization/fast/images/color-profile-background-clip-text.html [ Failure ]
-crbug.com/638942 [ Win ] virtual/gpu-rasterization/fast/images/color-profile-layer.html [ Pass Failure ]
-crbug.com/638942 [ Win ] virtual/gpu-rasterization/fast/images/color-profile-image-canvas-pattern.html [ Pass Failure ]
-crbug.com/638942 [ Win ] virtual/gpu-rasterization/fast/images/color-profile-svg-fill-text.html [ Pass Failure ]
-crbug.com/638942 [ Win ] virtual/gpu-rasterization/fast/images/color-profile-group.html [ Pass Failure ]
 
 crbug.com/627782 [ Win ] svg/filters/filter-source-position.svg [ Pass Failure ]