Use swarming in create_pagesets CT task

ct/isolates/create_pagesets.isolate

Index: ct/isolates/create_pagesets.isolate
diff --git a/go/swarming/testdata/test.isolate b/ct/isolates/create_pagesets.isolate
similarity index 53%
copy from go/swarming/testdata/test.isolate
copy to ct/isolates/create_pagesets.isolate
index b2470aeafed64c3b1a0aeb6b5dd4464888c03370..8447766147539c0d2f17a83142c9c707dc06e593 100644
--- a/go/swarming/testdata/test.isolate
+++ b/ct/isolates/create_pagesets.isolate
@@ -3,18 +3,21 @@
 # found in the LICENSE file.
 
 {
+  'includes': [
+    'py.isolate',
+  ],
   'conditions': [
     ['OS=="linux"', {
       'variables': {
         'files': [
-		  'artifacts/',
+          '../../../../../bin/create_pagesets',
         ],
         'command': [
-          'python',
-          'artifacts/test.py',
-          '--arg1', '<(ARG_1)',
-          '--arg2', '<(ARG_2)',
-          '--output-dir', '${ISOLATED_OUTDIR}',
+          '../../../../../bin/create_pagesets',
+          '-logtostderr',
+          '--start_range=<(START_RANGE)',
+          '--num=<(NUM)',
+          '--pageset_type=<(PAGESET_TYPE)',
         ],
       },
     }],