DevTools coverage: get script/stylesheet size directly, do not request content

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

 /*
  * Copyright (C) 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 22 matching lines @@
    * @param {string} scriptId
    * @param {string} sourceURL
    * @param {number} startLine
    * @param {number} startColumn
    * @param {number} endLine
    * @param {number} endColumn
    * @param {!Protocol.Runtime.ExecutionContextId} executionContextId
    * @param {string} hash
    * @param {boolean} isContentScript
    * @param {boolean} isLiveEdit
-   * @param {string=} sourceMapURL
-   * @param {boolean=} hasSourceURL
+   * @param {string|undefined} sourceMapURL
+   * @param {boolean} hasSourceURL
+   * @param {number} length
    */
   constructor(
-      debuggerModel,
-      scriptId,
-      sourceURL,
-      startLine,
-      startColumn,
-      endLine,
-      endColumn,
-      executionContextId,
-      hash,
-      isContentScript,
-      isLiveEdit,
-      sourceMapURL,
-      hasSourceURL) {
+      debuggerModel, scriptId, sourceURL, startLine, startColumn, endLine, endColumn, executionContextId, hash,
+      isContentScript, isLiveEdit, sourceMapURL, hasSourceURL, length) {
     this.debuggerModel = debuggerModel;
     this.scriptId = scriptId;
     this.sourceURL = sourceURL;
     this.lineOffset = startLine;
     this.columnOffset = startColumn;
     this.endLine = endLine;
     this.endColumn = endColumn;
 
     this._executionContextId = executionContextId;
     this.hash = hash;
     this._isContentScript = isContentScript;
     this._isLiveEdit = isLiveEdit;
     this.sourceMapURL = sourceMapURL;
     this.hasSourceURL = hasSourceURL;
+    this.contentLength = length;
     this._originalContentProvider = null;
     this._originalSource = null;
   }
 
   /**
    * @param {string} source
    * @return {string}
    */
   static _trimSourceURLComment(source) {
     var sourceURLIndex = source.lastIndexOf('//# sourceURL=');
@@ skipping 262 matching lines @@
       function callback(error) {
         if (error)
           console.error(error);
         fulfill(!error);
       }
     }
   }
 };
 
 SDK.Script.sourceURLRegex = /^[\040\t]*\/\/[@#] sourceURL=\s*(\S*?)\s*$/m;