DevTools: introduce CSSStyleSheetHeader.originalContentProvider() method

third_party/WebKit/Source/devtools/front_end/sass/SASSSourceMapFactory.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.
 
 /**
  * @constructor
  * @implements {WebInspector.SourceMapFactory}
  */
 WebInspector.SASSSourceMapFactory = function()
 {
@@ skipping 22 matching lines @@
         var models = new Map();
         var promises = [];
         for (let url of sourceMap.sourceURLs()) {
             var contentProvider = sourceMap.sourceContentProvider(url, WebInspector.resourceTypes.SourceMapStyleSheet);
             var sassPromise = contentProvider.requestContent()
                 .then(text => this._astService.parseSCSS(url, text || ""))
                 .then(ast => models.set(ast.document.url, ast));
             promises.push(sassPromise);
         }
         var cssURL = sourceMap.compiledURL();
-        var cssPromise = header.requestContent()
+        var cssPromise = header.originalContentProvider().requestContent()
             .then(text => this._astService.parseCSS(cssURL, text || ""))
             .then(ast => models.set(ast.document.url, ast));
         promises.push(cssPromise);
 
         return Promise.all(promises)
             .then(this._onSourcesParsed.bind(this, sourceMap, models))
             .catchException(/** @type {?WebInspector.SourceMap} */(null));
     },
 
     /**
@@ skipping 25 matching lines @@
             var sassNode = sassAST.findNodeForPosition(entry.sourceLineNumber, entry.sourceColumnNumber);
             if (!sassNode)
                 return;
             if (cssNode.parent && (cssNode.parent instanceof WebInspector.SASSSupport.Property) && cssNode === cssNode.parent.name)
                 valid = valid && cssNode.text.trim() === sassNode.text.trim();
             map.addMapping(cssNode, sassNode);
         }
     },
 }