Remove unused CookiePreferences from report sender and never send cookies

chrome/browser/ssl/chrome_expect_ct_reporter_unittest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ssl/chrome_expect_ct_reporter.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/command_line.h"
@@ skipping 17 matching lines @@
 
 namespace {
 
 const char kSendHistogramName[] = "SSL.ExpectCTReportSendingAttempt";
 const char kFailureHistogramName[] = "SSL.ExpectCTReportFailure2";
 
 // A test ReportSender that exposes the latest report URI and
 // serialized report to be sent.
 class TestCertificateReportSender : public net::ReportSender {
  public:
-  TestCertificateReportSender()
-      : ReportSender(nullptr, net::ReportSender::DO_NOT_SEND_COOKIES) {}
+  TestCertificateReportSender() : ReportSender(nullptr) {}
   ~TestCertificateReportSender() override {}
 
   void Send(const GURL& report_uri,
             base::StringPiece content_type,
             base::StringPiece serialized_report,
             const base::Callback<void()>& success_callback,
             const base::Callback<void(const GURL&, int, int)>& error_callback)
       override {
     latest_report_uri_ = report_uri;
     serialized_report.CopyToString(&latest_serialized_report_);
@@ skipping 437 matching lines @@
   EXPECT_EQ(report_uri, sender->latest_report_uri());
   EXPECT_FALSE(sender->latest_serialized_report().empty());
   EXPECT_EQ("application/json; charset=utf-8", sender->latest_content_type());
   ASSERT_NO_FATAL_FAILURE(CheckExpectCTReport(
       sender->latest_serialized_report(), host_port, ssl_info));
 
   histograms.ExpectTotalCount(kFailureHistogramName, 0);
   histograms.ExpectTotalCount(kSendHistogramName, 1);
   histograms.ExpectBucketCount(kSendHistogramName, true, 1);
 }