Update from chromium https://crrev.com/301315

mojo/tools/roll/skia_build.patch

Index: mojo/tools/roll/skia_build.patch
diff --git a/mojo/tools/roll/skia_build.patch b/mojo/tools/roll/skia_build.patch
new file mode 100644
index 0000000000000000000000000000000000000000..8fab3a0f54381797d6e23d7e28aa13e3bff0acce
--- /dev/null
+++ b/mojo/tools/roll/skia_build.patch
@@ -0,0 +1,30 @@
+diff --git a/skia/BUILD.gn b/skia/BUILD.gn
+index 356c6ae..042d03d 100644
+--- a/skia/BUILD.gn
++++ b/skia/BUILD.gn
+@@ -11,15 +11,6 @@ if (cpu_arch == "arm") {
+ skia_support_gpu = !is_ios
+ skia_support_pdf = !is_ios && printing_mode != 0
+ 
+-# The list of Skia defines that are to be set for blink.
+-gypi_blink_skia_defines = exec_script(
+-    "//build/gypi_to_gn.py",
+-    [ rebase_path("//third_party/WebKit/public/blink_skia_config.gypi"),
+-      "--replace=<(skia_include_path)=//third_party/skia/include",
+-      "--replace=<(skia_src_path)=//third_party/skia/src" ],
+-    "scope",
+-    [ "//third_party/WebKit/public/blink_skia_config.gypi" ])
+-
+ # The list of Skia defines that are to be set for chromium.
+ gypi_skia_defines = exec_script(
+     "//build/gypi_to_gn.py",
+@@ -107,8 +98,7 @@ config("skia_config") {
+     "//third_party/skia/src/lazy",
+   ]
+ 
+-  defines = gypi_blink_skia_defines.blink_skia_defines
+-  defines += gypi_skia_defines.skia_for_chromium_defines
++  defines = gypi_skia_defines.skia_for_chromium_defines
+ 
+   defines += [
+     "SK_ENABLE_INST_COUNT=0",