Make find_used_resources.py output resource ids in numerical order.

tools/resources/find_used_resources.py

Index: tools/resources/find_used_resources.py
===================================================================
--- tools/resources/find_used_resources.py	(revision 265149)
+++ tools/resources/find_used_resources.py	(working copy)
@@ -9,7 +9,7 @@
 
 usage = """find_used_resources.py
 
-Prints out (to sdout) the sorted list of resource ids that are part of unknown
+Prints out (to stdout) the sorted list of resource ids that are part of unknown
 pragma warning in the given build log (via stdin).
 
 This script is used to find the resources that are actually compiled in Chrome
@@ -32,11 +32,11 @@
   """
   used_resources = set()
   unknown_pragma_warning_pattern = re.compile(
-      'whitelisted_resource_(?P<resource_id>[0-9]*)')
+      'whitelisted_resource_(?P<resource_id>[0-9]+)')
   for ln in input:
     match = unknown_pragma_warning_pattern.search(ln)
     if match:
-      resource_id = match.group('resource_id')
+      resource_id = int(match.group('resource_id'))
       used_resources.add(resource_id)
   return sorted(used_resources)
 
@@ -46,8 +46,8 @@
     sys.exit(1)
   else:
     used_resources = GetResourceIdsInPragmaWarnings(sys.stdin)
-    for rid in used_resources:
-      sys.stdout.write(rid + '\n')
+    for resource_id in used_resources:
+      sys.stdout.write('%d\n' % resource_id)
 
 if __name__ == '__main__':
   Main()