Remove the WARNING security level.

third_party/WebKit/Source/devtools/front_end/security/SecurityModel.js

 // Copyright 2015 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.
 
 /**
  * @constructor
  * @extends {WebInspector.SDKModel}
  * @param {!WebInspector.Target} target
  */
 WebInspector.SecurityModel = function(target)
@@ skipping 40 matching lines @@
 {
     var securityStateMap;
     if (WebInspector.SecurityModel._symbolicToNumericSecurityState) {
         securityStateMap = WebInspector.SecurityModel._symbolicToNumericSecurityState;
     } else {
         securityStateMap = new Map();
         var ordering = [
             SecurityAgent.SecurityState.Info,
             SecurityAgent.SecurityState.Insecure,
             SecurityAgent.SecurityState.Neutral,
-            SecurityAgent.SecurityState.Warning,
             SecurityAgent.SecurityState.Secure,
             // Unknown is max so that failed/cancelled requests don't overwrite the origin security state for successful requests,
             // and so that failed/cancelled requests appear at the bottom of the origins list.
             SecurityAgent.SecurityState.Unknown
         ];
         for (var i = 0; i < ordering.length; i++)
             securityStateMap.set(ordering[i], i + 1);
         WebInspector.SecurityModel._symbolicToNumericSecurityState = securityStateMap;
     }
     var aScore = securityStateMap.get(a) || 0;
@@ skipping 32 matching lines @@
      * @param {!Array<!SecurityAgent.SecurityStateExplanation>=} explanations
      * @param {!SecurityAgent.InsecureContentStatus=} insecureContentStatus
      * @param {boolean=} schemeIsCryptographic
      */
     securityStateChanged: function(securityState, explanations, insecureContentStatus, schemeIsCryptographic)
     {
         var pageSecurityState = new WebInspector.PageSecurityState(securityState, explanations || [], insecureContentStatus || null, schemeIsCryptographic || false);
         this._model.dispatchEventToListeners(WebInspector.SecurityModel.Events.SecurityStateChanged, pageSecurityState);
     }
 }