DevTools: don't report violations in the error/warning counter.

third_party/WebKit/Source/devtools/front_end/sdk/ConsoleModel.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 138 matching lines @@
     if (msg._exceptionId)
       this._messageByExceptionId.set(msg._exceptionId, msg);
     this._incrementErrorWarningCount(msg);
     this.dispatchEventToListeners(SDK.ConsoleModel.Events.MessageAdded, msg);
   }
 
   /**
    * @param {!SDK.ConsoleMessage} msg
    */
   _incrementErrorWarningCount(msg) {
+    if (msg.source === SDK.ConsoleMessage.MessageSource.Violation)
+      return;
     switch (msg.level) {
       case SDK.ConsoleMessage.MessageLevel.Warning:
         this._warnings++;
         break;
       case SDK.ConsoleMessage.MessageLevel.Error:
         this._errors++;
         break;
       case SDK.ConsoleMessage.MessageLevel.RevokedError:
         this._revokedErrors++;
         break;
@@ skipping 467 matching lines @@
    */
   _commandEvaluated(event) {
     this.dispatchEventToListeners(SDK.ConsoleModel.Events.CommandEvaluated, event.data);
   }
 };
 
 /**
  * @type {!SDK.MultitargetConsoleModel}
  */
 SDK.multitargetConsoleModel;