Issue 5695 - Use tabs.insertCSS if extensionTypes.CSSOrigin exists

include.preload.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 423 matching lines @@
       let selector = preparedSelectors.slice(
         i, i + this.selectorGroupSize
       ).join(", ");
       this.style.sheet.insertRule(selector + "{display: none !important;}",
                                   this.style.sheet.cssRules.length);
     }
   },
 
   addSelectors(selectors, filters)
   {
     if (!selectors || selectors.length == 0)

[Manish Jethani, 2017/09/17 13:51:37]

This is no longer needed since we're checking this before calling this method.
It was never needed for the other case where this method is called for the
emulation filters.

       return;
 
     if (this.inject)
     {
       // Insert the style rules inline if we have been instructed by the
       // background page to do so. This is usually the case, except on platforms
       // that do support user stylesheets via the chrome.tabs.insertCSS API
       // (Firefox 53 onwards for now and possibly Chrome in the near future).
       // Once all supported platforms have implemented this API, we can remove
       // the code below. See issue #5090.
@@ skipping 37 matching lines @@
         this.tracer.disconnect();
       this.tracer = null;
 
       if (this.style && this.style.parentElement)
         this.style.parentElement.removeChild(this.style);
       this.style = null;
 
       if (response.trace)
         this.tracer = new ElementHidingTracer();
 
-      this.inject = response.inject;
+      this.inject = !!response.inject;
 
       if (this.inject)
         this.addSelectors(response.selectors);
       else if (this.tracer)
         this.tracer.addSelectors(response.selectors);
 
       this.elemHideEmulation.apply();
     });
   }
 };
@@ skipping 10 matching lines @@
     checkCollapse(event.target);
   }, true);
 
   document.addEventListener("load", event =>
   {
     let element = event.target;
     if (/^i?frame$/.test(element.localName))
       checkCollapse(element);
   }, true);
 }