Update from https://crrev.com/311076

tools/valgrind/chrome_tests.py

Index: tools/valgrind/chrome_tests.py
diff --git a/tools/valgrind/chrome_tests.py b/tools/valgrind/chrome_tests.py
index eef31756b40d8e0ac4edbd3fedfc983853dd7c39..40ef7bab8f6afbd44281993844d0b2c482721b04 100755
--- a/tools/valgrind/chrome_tests.py
+++ b/tools/valgrind/chrome_tests.py
@@ -446,6 +446,9 @@ class ChromeTests:
                                "--ui-test-action-timeout=60000",
                                "--ui-test-action-max-timeout=150000"])
 
+  def TestSkia(self):
+    return self.SimpleTest("skia", "skia_unittests")
+
   def TestSql(self):
     return self.SimpleTest("chrome", "sql_unittests")
 
@@ -706,6 +709,7 @@ class ChromeTests:
     "remoting": TestRemoting,    "remoting_unittests": TestRemoting,
     "safe_browsing": TestSafeBrowsing, "safe_browsing_tests": TestSafeBrowsing,
     "sandbox": TestLinuxSandbox, "sandbox_linux_unittests": TestLinuxSandbox,
+    "skia": TestSkia,            "skia_unittests": TestSkia,
     "sql": TestSql,              "sql_unittests": TestSql,
     "sync": TestSync,            "sync_unit_tests": TestSync,
     "sync_integration_tests": TestSyncIntegration,