Fix my (??) stupid typo in memcheck_analyze which stupid python didn't caught.

As a result, memcheck_analyze was waiting for dead Valgrind processes for 3
extra minutes. D'oh.
BUG=17453,44545
TEST=trybots, experiments by eugenis@
Review URL: http://codereview.chromium.org/6258010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@72119 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/memcheck_analyze.py

@@ -418,7 +418,7 @@ class MemcheckAnalyzer:
           # 3 minutes if it was killed. See http://crbug.com/17453
           ps_out = subprocess.Popen("ps p %s" % pid, shell=True,
                                     stdout=subprocess.PIPE).stdout
-          if ps_out.readlines() < 2:
+          if len(ps_out.readlines()) < 2:
             running = False
         found = find_and_truncate(f)
         if not running and not found: