Fix pexpect index for android test runner.

Following https://chromiumcodereview.appspot.com/10310046/
The index for pexpect.TIMEOUT is wrong.

BUG=
TEST=


Review URL: https://chromiumcodereview.appspot.com/10545055

git-svn-id: http://src.chromium.org/svn/trunk/src/build@141168 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

android/test_package.py

@@ -172,7 +172,7 @@ class TestPackage(object):
                                       p.before)]
       if found >= 3:
         # The test bailed out (i.e., didn't print OK or FAIL).
-        if found == 3:  # pexpect.TIMEOUT
+        if found == 4:  # pexpect.TIMEOUT
           logging.error('Test terminated after %d second timeout.',
                         self.timeout)
           timed_out = True