gpu: Enable OOPR by default on all platforms.

The only remaining platform is linux which doesn't ship GPU raster
currently. This change switches any test code using GPU raster on linux
to OOPR.

R=sunnyps@chromium.org
Bug:757605

Change-Id: I5c14c9d7bc423307156e3ca6b091d263036ac4b5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2439895
Commit-Queue: Khushal <khushalsagar@chromium.org>
Reviewed-by: Sunny Sachanandani <sunnyps@chromium.org>
Auto-Submit: Khushal <khushalsagar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#812995}

gpu/config/gpu_finch_features.cc

@@ -43,15 +43,9 @@ const base::Feature kDefaultEnableGpuRasterization{
 #endif
 
 // Enable out of process rasterization by default.  This can still be overridden
-// by --enable-oop-rasterization or --disable-oop-rasterization.
-#if defined(OS_ANDROID) || defined(OS_CHROMEOS) || defined(OS_MAC) || \
-    defined(OS_WIN) || defined(OS_FUCHSIA)
+// by --disable-oop-rasterization.
 const base::Feature kDefaultEnableOopRasterization{
     "DefaultEnableOopRasterization", base::FEATURE_ENABLED_BY_DEFAULT};
-#else
-const base::Feature kDefaultEnableOopRasterization{
-    "DefaultEnableOopRasterization", base::FEATURE_DISABLED_BY_DEFAULT};
-#endif
 
 #if defined(OS_WIN)
 // Use a high priority for GPU process on Windows.

third_party/blink/web_tests/TestExpectations

@@ -192,6 +192,7 @@ crbug.com/829740 fast/history/history-back-twice-with-subframes-assert.html [ Pa
 
 ########## Genuinely flaky ##########
 crbug.com/624233 virtual/gpu-rasterization/images/color-profile-background-clip-text.html [ Pass Failure ]
+crbug.com/757605 virtual/gpu-rasterization/images/jpeg-yuv-progressive-image.html [ Pass Failure ]
 
 ########## Bugs to fix ##########
 # This is a missing event and increasing the timeout or using run-after-layout-and-paint doesn't