Implement $Secure- cookie prefix

net/cookies/cookie_options.h

Index: net/cookies/cookie_options.h
diff --git a/net/cookies/cookie_options.h b/net/cookies/cookie_options.h
index d3d7fd056b71a05cc92e322b10d8d8f7d47991a9..9b408861c6e8ee81d7462514a21619a990598fb4 100644
--- a/net/cookies/cookie_options.h
+++ b/net/cookies/cookie_options.h
@@ -35,6 +35,11 @@ class NET_EXPORT CookieOptions {
   void set_first_party_url(const GURL& url) { first_party_url_ = url; }
   GURL first_party_url() const { return first_party_url_; }
 
+  // TODO(estark): Remove once we decide whether to ship cookie
+  // prefixes. https://crbug.com/541511
+  void set_enforce_prefixes() { enforce_prefixes_ = true; }
+  bool enforce_prefixes() const { return enforce_prefixes_; }
+
   // |server_time| indicates what the server sending us the Cookie thought the
   // current time was when the cookie was produced.  This is used to adjust for
   // clock skew between server and host.
@@ -48,6 +53,7 @@ class NET_EXPORT CookieOptions {
   bool exclude_httponly_;
   bool include_first_party_only_;
   GURL first_party_url_;
+  bool enforce_prefixes_;
   base::Time server_time_;
 };