DevTools: introduce API for the Common.FormatterWorkerPool.

third_party/WebKit/Source/devtools/front_end/sources/SourceMapNamesResolver.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 Sources.SourceMapNamesResolver = {};
 
 Sources.SourceMapNamesResolver._cachedMapSymbol = Symbol('cache');
 Sources.SourceMapNamesResolver._cachedIdentifiersSymbol = Symbol('cachedIdentifiers');
 
 /**
  * @unrestricted
@@ skipping 33 matching lines @@
   function onContent(content) {
     if (!content)
       return Promise.resolve(/** @type {!Array<!Sources.SourceMapNamesResolver.Identifier>}*/ ([]));
 
     var text = new Common.Text(content);
     var scopeRange = new Common.TextRange(
         startLocation.lineNumber, startLocation.columnNumber, endLocation.lineNumber, endLocation.columnNumber);
     var scopeText = text.extract(scopeRange);
     var scopeStart = text.toSourceRange(scopeRange).offset;
     var prefix = 'function fui';
-    return Common.formatterWorkerPool.runTask('javaScriptIdentifiers', {content: prefix + scopeText})
+    return Common.formatterWorkerPool.javaScriptIdentifiers(prefix + scopeText)
         .then(onIdentifiers.bind(null, text, scopeStart, prefix));
   }
 
   /**
    * @param {!Common.Text} text
    * @param {number} scopeStart
    * @param {string} prefix
-   * @param {?MessageEvent} event
+   * @param {!Array<!{name: string, offset: number}>} identifiers
    * @return {!Array<!Sources.SourceMapNamesResolver.Identifier>}
    */
-  function onIdentifiers(text, scopeStart, prefix, event) {
-    var identifiers = event ? /** @type {!Array<!{name: string, offset: number}>} */ (event.data) : [];
+  function onIdentifiers(text, scopeStart, prefix, identifiers) {
     var result = [];
     var cursor = new Common.TextCursor(text.lineEndings());
     var promises = [];
     for (var i = 0; i < identifiers.length; ++i) {
       var id = identifiers[i];
       if (id.offset < prefix.length)
         continue;
       var start = scopeStart + id.offset - prefix.length;
       cursor.resetTo(start);
       result.push(new Sources.SourceMapNamesResolver.Identifier(id.name, cursor.lineNumber(), cursor.columnNumber()));
@@ skipping 198 matching lines @@
   function onContent(content) {
     if (!content)
       return Promise.resolve('');
 
     var text = new Common.Text(content);
     var textRange = sourceMap.reverseMapTextRange(
         uiSourceCode.url(), new Common.TextRange(lineNumber, startColumnNumber, lineNumber, endColumnNumber));
     var originalText = text.extract(textRange);
     if (!originalText)
       return Promise.resolve('');
-    return Common.formatterWorkerPool.runTask('evaluatableJavaScriptSubstring', {content: originalText}).then(onResult);
-  }
-
-  /**
-   * @param {?MessageEvent} event
-   * @return {string}
-   */
-  function onResult(event) {
-    return event ? /** @type {string} */ (event.data) : '';
+    return Common.formatterWorkerPool.evaluatableJavaScriptSubstring(originalText);
   }
 };
 
 /**
  * @param {?SDK.DebuggerModel.CallFrame} callFrame
  * @return {!Promise<?SDK.RemoteObject>}
  */
 Sources.SourceMapNamesResolver.resolveThisObject = function(callFrame) {
   if (!callFrame)
     return Promise.resolve(/** @type {?SDK.RemoteObject} */ (null));
@@ skipping 237 matching lines @@
   }
 
   /**
    * @override
    * @return {boolean}
    */
   isNode() {
     return this._object.isNode();
   }
 };