No issue: add main function to setup-startup-profiling.

tools/setup-startup-profiling.py

@@ -48,6 +48,7 @@ def remove(filename):
     run(['adb', 'shell', 'rm', PATH_PREFIX + '/' + filename])
     run(['adb', 'shell', 'am', 'clear-debug-app'])
 
+def main():
     try:
         cmd = sys.argv[1]
         id = sys.argv[2]
@@ -62,3 +63,6 @@ elif cmd == 'remove':
         remove(filename)
     else:
         print_usage_and_exit()
+
+if __name__ == '__main__':
+    main()