Fix minor bug in remote_inspector_client.py that broke it.

In https://codereview.chromium.org/14058002, the function named
_IsWebkitVersionNotOlderThan was changed to
_IsContentVersionNotOlderThan.  There was one more reference to the
old function name in the file that needed to be updated.  That is
done here.  Without this fix, the Chrome Endure tests are broken.

BUG=None
TEST=Verified that a basic run of a Chrome Endure test failed before
this change, but passed after this change.

Review URL: https://codereview.chromium.org/14272005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@194482 0039d316-1c4b-4281-b951-d872f2087c98

chrome/test/pyautolib/remote_inspector_client.py

@@ -1043,7 +1043,7 @@ class RemoteInspectorClient(object):
       }
     """
     # TODO(yurys): Remove this hack after M27 is released.
-    if self._IsWebkitVersionNotOlderThan(537, 31):
+    if self._IsContentVersionNotOlderThan(537, 31):
       return self._GetMemoryObjectCountsNew()
 
     MEMORY_COUNT_MESSAGES = [