chromium_android: Add device affinity to links

scripts/slave/recipe_modules/chromium_android/api.py

Index: scripts/slave/recipe_modules/chromium_android/api.py
diff --git a/scripts/slave/recipe_modules/chromium_android/api.py b/scripts/slave/recipe_modules/chromium_android/api.py
index 6ea8ed92d04b9ed430a0e32f76fc7dbe932c3880..8cf4435c6b0133e1ba51a6a2264beab110b9e3b1 100644
--- a/scripts/slave/recipe_modules/chromium_android/api.py
+++ b/scripts/slave/recipe_modules/chromium_android/api.py
@@ -797,9 +797,12 @@ class AndroidApi(recipe_api.RecipeApi):
       finally:
         if 'device_affinity' in test_data:
           step_result = self.m.step.active_result
+          affinity = test_data['device_affinity']
+
           step_result.presentation.step_text += (
               self.m.test_utils.format_step_text(
-                  [['Device Affinity: %s' % test_data['device_affinity']]]))
+                  [['Device Affinity: %s' % affinity]]))
+          step_result.presentation.logs['device affinity'] = str(affinity)
 
       if archive:
         dest = '{builder}/{test}/{timestamp}_build_{buildno}.zip'.format(