Set up python BROWSER_WRAPPER for ui_tests under Dr. Memory

tools/valgrind/browser_wrapper_win.py

+# Copyright (c) 2011 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import os
+import re
+import sys
+import subprocess
+
+# TODO(timurrrr): we may use it on POSIX too to avoid code duplication once we
+# support layout_tests, remove Dr. Memory specific code and verify it works
+# on a "clean" Mac.
+
+wrapper_pid = os.getpid()
+testcase_name = None
+for arg in sys.argv:
+  m = re.match("\-\-test\-name=(.*)", arg)
+  if m:
+    assert testcase_name is None
+    testcase_name = m.groups()[0]
+
+# arg #0 is the path to this python script
+cmd_to_run = sys.argv[1:]
+
+# TODO(timurrrr): this is Dr. Memory-specific
+# Usually, we pass "-logdir" "foo\bar\spam path" args to Dr. Memory.
+# To group reports per UI test, we want to put the reports for each test into a
+# separate directory. This code can be simplified when we have
+# http://code.google.com/p/drmemory/issues/detail?id=684 fixed.
+logdir_idx = cmd_to_run.index("-logdir")
+old_logdir = cmd_to_run[logdir_idx + 1]
+cmd_to_run[logdir_idx + 1] += "\\testcase.%d.logs" % wrapper_pid
+os.makedirs(cmd_to_run[logdir_idx + 1])
+
+if testcase_name:
+  f = open(old_logdir + "\\testcase.%d.name" % wrapper_pid, "w")
+  print >>f, testcase_name
+  f.close()
+
+exit(subprocess.call(cmd_to_run))