Remove unused CookiePreferences from report sender and never send cookies

net/url_request/report_sender.h

Index: net/url_request/report_sender.h
diff --git a/net/url_request/report_sender.h b/net/url_request/report_sender.h
index a230f0603b1a9b5a769ade2f65b3e133eb509664..7506071680d754e7ef3a4d58507f110b6c9e3883 100644
--- a/net/url_request/report_sender.h
+++ b/net/url_request/report_sender.h
@@ -33,15 +33,10 @@ class NET_EXPORT ReportSender
   using SuccessCallback = base::Callback<void()>;
   using ErrorCallback = base::Callback<void(const GURL&, int)>;
 
-  // Represents whether or not to send cookies along with reports.
-  enum CookiesPreference { SEND_COOKIES, DO_NOT_SEND_COOKIES };
-
   // Constructs a ReportSender that sends reports with the
-  // given |request_context| and includes or excludes cookies based on
-  // |cookies_preference|. |request_context| must outlive the
-  // ReportSender.
-  ReportSender(URLRequestContext* request_context,
-               CookiesPreference cookies_preference);
+  // given |request_context|, always excluding cookies. |request_context| must
+  // outlive the ReportSender.
+  explicit ReportSender(URLRequestContext* request_context);
 
   ~ReportSender() override;
 
@@ -58,9 +53,6 @@ class NET_EXPORT ReportSender
 
  private:
   net::URLRequestContext* const request_context_;
-
-  CookiesPreference cookies_preference_;
-
   std::map<URLRequest*, std::unique_ptr<URLRequest>> inflight_requests_;
 
   DISALLOW_COPY_AND_ASSIGN(ReportSender);