Modify Skia recipes to allow running XSAN on Swarming.

scripts/slave/recipes/skia/swarm_test.py

Index: scripts/slave/recipes/skia/swarm_test.py
diff --git a/scripts/slave/recipes/skia/swarm_test.py b/scripts/slave/recipes/skia/swarm_test.py
index 4054244e8127a8291866f087f30d70234a654e4b..3d7aac1ee735872848b7bbd9431c454fba636df6 100644
--- a/scripts/slave/recipes/skia/swarm_test.py
+++ b/scripts/slave/recipes/skia/swarm_test.py
@@ -27,6 +27,9 @@ TEST_BUILDERS = {
     'skiabot-nexus6-001': [
       'Test-Android-GCC-Nexus6-GPU-Adreno420-Arm7-Release',
     ],
+    'skiabot-linux-swarm-007': [
+      'Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-SwarmingMSAN',
+    ],
     'skiabot-linux-swarm-012': [
       'Test-Ubuntu-GCC-ShuttleA-GPU-GTX550Ti-x86_64-Release-Valgrind',
     ],
@@ -95,4 +98,3 @@ def GenTests(api):
 
 
         yield test
-