Remove SK_IGNORE_MASK_FILTER_GLYPH_FIX and rebaseline.

This flag is holding out a Skia change which fixes a number of shadows.
This removes the flag added in
https://chromium-review.googlesource.com/c/chromium/src/+/1050466 to keep
https://review.skia.org/126615 from requiring rebaselines when rolling.

Change-Id: Ibb3af277be20e70e146e805fe1a2e4171742eabc
Reviewed-on: https://chromium-review.googlesource.com/1050203
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Dominik Röttsches <drott@chromium.org>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Cr-Commit-Position: refs/heads/master@{#557163}

skia/BUILD.gn

@@ -149,10 +149,7 @@ config("skia_library_config") {
   # TODO: remove after Skia shader relocation (https://skia-review.googlesource.com/c/17927)
   include_dirs += [ "//third_party/skia/src/effects/gradients" ]
 
-  defines = [
-    "SK_USE_SKCMS",
-    "SK_IGNORE_MASK_FILTER_GLYPH_FIX",
-  ]
+  defines = [ "SK_USE_SKCMS" ]
 
   if (!is_ios && !use_system_freetype) {
     defines += [ "SK_FREETYPE_MINIMUM_RUNTIME_VERSION=(((FREETYPE_MAJOR) * 0x01000000) | ((FREETYPE_MINOR) * 0x00010000) | ((FREETYPE_PATCH) * 0x00000100))" ]