Maintain a map of all resources in the resource tracker and clear instance back pointers when needed,

BUG=85808
Review URL: http://codereview.chromium.org/7196001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@89746 0039d316-1c4b-4281-b951-d872f2087c98
void PPB_URLLoader_Impl::GrantUniversalAccess() {
  has_universal_access_ = true;
}

void PPB_URLLoader_Impl::GrantUniversalAccess() {
  has_universal_access_ = true;
}
