Add -ignorewarnings to run_on_app.py tests

Change-Id: I1058f3b4fbe941b197198dd2771c6d84bba0c87a
diff --git a/tools/chrome_data.py b/tools/chrome_data.py
index 20ddb21..7649257 100644
--- a/tools/chrome_data.py
+++ b/tools/chrome_data.py
@@ -271,7 +271,8 @@
             { 'inputs': [os.path.join(V200520_MINIMAL_BASE, 'feature-7.jar')] },
             { 'inputs': [os.path.join(V200520_MINIMAL_BASE, 'feature-8.jar')] }
         ],
-        'pgconf': [os.path.join(V200520_MINIMAL_BASE, 'proguard.config')],
+        'pgconf': [os.path.join(V200520_MINIMAL_BASE, 'proguard.config'),
+                   utils.IGNORE_WARNINGS_RULES],
         'libraries': [os.path.join(V200520_MINIMAL_BASE, 'library.jar')],
         'min-api': ANDROID_N_API
     },