DevTools: migrate from external Maps to symbols in the bindings objects.

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
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 /**
  * @implements {Common.ContentProvider}
  * @unrestricted
  */
-SDK.Script = class extends SDK.SDKObject {
+SDK.Script = class {
   /**
    * @param {!SDK.DebuggerModel} debuggerModel
    * @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
    */
   constructor(
       debuggerModel,
       scriptId,
       sourceURL,
       startLine,
       startColumn,
       endLine,
       endColumn,
       executionContextId,
       hash,
       isContentScript,
       isLiveEdit,
       sourceMapURL,
       hasSourceURL) {
-    super(debuggerModel.target());
     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;
   }
 
   /**
    * @param {string} source
@@ skipping 37 matching lines @@
       return;
     var text = Common.UIString(
         '\'//@ sourceURL\' and \'//@ sourceMappingURL\' are deprecated, please use \'//# sourceURL=\' and \'//# sourceMappingURL=\' instead.');
     var msg = new SDK.ConsoleMessage(
         script.target(), SDK.ConsoleMessage.MessageSource.JS, SDK.ConsoleMessage.MessageLevel.Warning, text, undefined,
         undefined, undefined, undefined, undefined, undefined, undefined, undefined, undefined, script.scriptId);
     consoleModel.addMessage(msg);
   }
 
   /**
+   * @return {!SDK.Target}
+   */
+  target() {
+    return this.debuggerModel.target();
+  }
+
+  /**
    * @return {boolean}
    */
   isContentScript() {
     return this._isContentScript;
   }
 
   /**
    * @return {?SDK.ExecutionContext}
    */
   executionContext() {
@@ skipping 192 matching lines @@
       function callback(error) {
         if (error)
           console.error(error);
         fulfill(!error);
       }
     }
   }
 };
 
 SDK.Script.sourceURLRegex = /^[\040\t]*\/\/[@#] sourceURL=\s*(\S*?)\s*$/m;