Roll to pickup pool changes

packages/csslib/lib/parser.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library csslib.parser;
 
 import 'dart:math' as math;
 
 import 'package:source_span/source_span.dart';
 
-import 'visitor.dart';
 import 'src/messages.dart';
 import 'src/options.dart';
+import 'visitor.dart';
 
 export 'src/messages.dart' show Message;
 export 'src/options.dart';
 
 part 'src/analyzer.dart';
 part 'src/polyfill.dart';
 part 'src/property.dart';
 part 'src/token.dart';
 part 'src/tokenizer_base.dart';
 part 'src/tokenizer.dart';
@@ skipping 37 matching lines @@
     bool polyfill: false,
     List<StyleSheet> includes: null}) {
   if (includes == null) {
     includes = [];
   }
 
   var source = _inputAsString(input);
 
   _createMessages(errors: errors, options: options);
 
-  var file = new SourceFile(source);
+  var file = new SourceFile.fromString(source);
 
   var tree = new _Parser(file, source).parse();
 
   analyze([tree], errors: errors, options: options);
 
   if (polyfill) {
     var processCss = new PolyFill(messages);
     processCss.process(tree, includes: includes);
   }
 
@@ skipping 10 matching lines @@
 /**
  * Parse the [input] CSS stylesheet into a tree. The [input] can be a [String],
  * or [List<int>] of bytes and returns a [StyleSheet] AST.  The optional
  * [errors] list will contain each error/warning as a [Message].
  */
 StyleSheet parse(input, {List<Message> errors, PreprocessorOptions options}) {
   var source = _inputAsString(input);
 
   _createMessages(errors: errors, options: options);
 
-  var file = new SourceFile(source);
+  var file = new SourceFile.fromString(source);
   return new _Parser(file, source).parse();
 }
 
 /**
  * Parse the [input] CSS selector into a tree. The [input] can be a [String],
  * or [List<int>] of bytes and returns a [StyleSheet] AST.  The optional
  * [errors] list will contain each error/warning as a [Message].
  */
 // TODO(jmesserly): should rename "parseSelector" and return Selector
 StyleSheet selector(input, {List<Message> errors}) {
   var source = _inputAsString(input);
 
   _createMessages(errors: errors);
 
-  var file = new SourceFile(source);
+  var file = new SourceFile.fromString(source);
   return (new _Parser(file, source)..tokenizer.inSelector = true)
       .parseSelector();
 }
 
 SelectorGroup parseSelectorGroup(input, {List<Message> errors}) {
   var source = _inputAsString(input);
 
   _createMessages(errors: errors);
 
-  var file = new SourceFile(source);
+  var file = new SourceFile.fromString(source);
   return (new _Parser(file, source)
         // TODO(jmesserly): this fix should be applied to the parser. It's tricky
         // because by the time the flag is set one token has already been fetched.
         ..tokenizer.inSelector = true)
       .processSelectorGroup();
 }
 
 String _inputAsString(input) {
   String source;
 
@@ skipping 2805 matching lines @@
 
     if (replace != null && result == null) {
       result = new StringBuffer(text.substring(0, i));
     }
 
     if (result != null) result.write(replace != null ? replace : text[i]);
   }
 
   return result == null ? text : result.toString();
 }