Implements strict secure cookies as the default behavior in //net

net/url_request/url_request_http_job.cc

Index: net/url_request/url_request_http_job.cc
diff --git a/net/url_request/url_request_http_job.cc b/net/url_request/url_request_http_job.cc
index 67151f6bf099960951a1549a9a66953e458fd43a..b3053b24325a37a5a659adab66e0f56c65c0cc92 100644
--- a/net/url_request/url_request_http_job.cc
+++ b/net/url_request/url_request_http_job.cc
@@ -755,11 +755,6 @@ void URLRequestHttpJob::SaveCookiesAndNotifyHeadersComplete(int result) {
     options.set_include_httponly();
     options.set_server_time(response_date);
 
-    if (network_delegate() &&
-        network_delegate()->AreStrictSecureCookiesEnabled()) {
-      options.set_enforce_strict_secure();
-    }
-
     // Set all cookies, without waiting for them to be set. Any subsequent read
     // will see the combined result of all cookie operation.
     const base::StringPiece name("Set-Cookie");