Code:  PPB_URLLoader_Impl::~PPB_URLLoader_Impl() {
 }

Vulnerability Type: DoS 
CWE ID: CWE-416
Summary: Use-after-free vulnerability in Google Chrome before 23.0.1271.97 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the URL loader.
Commit Message: Break path whereby AssociatedURLLoader::~AssociatedURLLoader() is re-entered on top of itself.

BUG=159429

Review URL: https://chromiumcodereview.appspot.com/11359222

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@168150 0039d316-1c4b-4281-b951-d872f2087c98