Http cache: Test deleting an entry with a pending_entry when
adding the truncated flag.

BUG=125159
TEST=net_unittests
Review URL: https://chromiumcodereview.appspot.com/10356113

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@139331 0039d316-1c4b-4281-b951-d872f2087c98
  static void FastNoStoreHandler(const net::HttpRequestInfo* request,
                                 std::string* response_status,
                                 std::string* response_headers,
                                 std::string* response_data) {
    if (no_store)
      *response_headers = "Cache-Control: no-store\n";
  }

  static void FastNoStoreHandler(const net::HttpRequestInfo* request,
                                 std::string* response_status,
                                 std::string* response_headers,
                                 std::string* response_data) {
    if (no_store)
      *response_headers = "Cache-Control: no-store\n";
  }
