Add console warning and tests for strict secure cookies.

third_party/WebKit/Source/devtools/front_end/sdk/NetworkManager.js

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 364 matching lines @@
     networkRequest.responseReceivedTime = time;
     networkRequest.setResourceType(Common.resourceTypes[resourceType]);
 
     // net::ParsedCookie::kMaxCookieSize = 4096 (net/cookies/parsed_cookie.h)
     if ('Set-Cookie' in response.headers && response.headers['Set-Cookie'].length > 4096) {
       Common.console.warn(Common.UIString(
           'Set-Cookie header is ignored in response from url: %s. Cookie length should be less then or equal to 4096 characters.',
           response.url));
     }
 
+    // Cookies with the Secure attribute set will be ignored if coming from an
+    // insecure connection. See net::CanonicalCookie::Create in
+    // net/cookies/canonical_cookie.cc. Note that this console message is meant
+    // to be temporary, and should be removed after 08/01/2017.
+    if (response.url.asParsedURL().scheme !== 'https' &&
+        'Set-Cookie' in response.headers) {
+      var cookies = SDK.CookieParser.parseSetCookie(this._manager._target, response.headers['Set-Cookie']);
+      for (var i = 0; i < cookies.length; i++) {
+        if (cookies[i].secure()) {
+          Common.console.warn(Common.UIString(
+              'Set-Cookie for %s is ignored in response from url: %s. It is marked as secure, but the response url is insecure.',
+              cookies[i].name(), response.url));
+        }
+      }
+    }
+
     this._updateNetworkRequestWithResponse(networkRequest, response);
 
     this._updateNetworkRequest(networkRequest);
     this._manager.dispatchEventToListeners(SDK.NetworkManager.Events.ResponseReceived, networkRequest);
   }
 
   /**
    * @override
    * @param {!Protocol.Network.RequestId} requestId
    * @param {!Protocol.Network.Timestamp} time
@@ skipping 502 matching lines @@
 SDK.MultitargetNetworkManager.Events = {
   ConditionsChanged: Symbol('ConditionsChanged'),
   UserAgentChanged: Symbol('UserAgentChanged')
 };
 
 
 /**
  * @type {!SDK.MultitargetNetworkManager}
  */
 SDK.multitargetNetworkManager;