[DevTools] Handle emulated device scale factor and original device scale factor properly.

third_party/WebKit/Source/devtools/front_end/externs.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 185 matching lines @@
               label:(string|undefined), enabled:(boolean|undefined), checked:(boolean|undefined),
               subItems:(!Array.<!DevToolsHost.ContextMenuDescriptor>|undefined)}} */
 DevToolsHost.ContextMenuDescriptor;
 
 /**
  * @return {number}
  */
 DevToolsHost.zoomFactor = function() { }
 
 /**
- * @param {number} length
- * @return {number}
- */
-DevToolsHost.convertLengthForEmbedder = function(length) { }
-
-/**
  * @param {string} origin
  * @param {string} script
  */
 DevToolsHost.setInjectedScriptForOrigin = function(origin, script) { }
 
 /**
  * @param {string} text
  */
 DevToolsHost.copyText = function(text) { }
 
@@ skipping 470 matching lines @@
  * @extends {ESTree.Node}
  * @constructor
  */
 ESTree.TemplateLiteralNode = function()
 {
     /** @type {!Array.<!ESTree.Node>} */
     this.quasis;
     /** @type {!Array.<!ESTree.Node>} */
     this.expressions;
 }