Supply video_decode_accelerator_unittest args in buildbot json

content/test/gpu/generate_buildbot_json.py

Index: content/test/gpu/generate_buildbot_json.py
diff --git a/content/test/gpu/generate_buildbot_json.py b/content/test/gpu/generate_buildbot_json.py
index 6b814a0db2f1a05e27d863616d93e93053b587f6..1e022fe88c790c82d3da1b39081603591d33fd50 100755
--- a/content/test/gpu/generate_buildbot_json.py
+++ b/content/test/gpu/generate_buildbot_json.py
@@ -1093,6 +1093,10 @@ COMMON_GTESTS = {
         'os_types': ['win']
       },
     ],
+    'args': [
+      '--test_video_data='
+          '../../media/test/data/test-25fps.h264:320:240:250:258:50:175:1'
+    ],
   },
 }