Add batch information to json

gyp/common_conditions.gypi

Index: gyp/common_conditions.gypi
diff --git a/gyp/common_conditions.gypi b/gyp/common_conditions.gypi
index 85f3e20376d12d7a137171b3fb70c937f5474dd0..9af0c19b7f9552a72e8d6567c30826f968b779fc 100644
--- a/gyp/common_conditions.gypi
+++ b/gyp/common_conditions.gypi
@@ -674,6 +674,12 @@
       },
     }],
 
+    [ 'skia_build_server', {
+      'defines': [
+        'GR_BATCH_DEBUGGING_OUTPUT=1',
+      ],
+    }],
+
   ], # end 'conditions'
   # The Xcode SYMROOT must be at the root. See build/common.gypi in chromium for more details
   'xcode_settings': {