Format all files under tools and utils directory.

utils/compiler/create_snapshot_entry.dart

 // Copyright (c) 2013, 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.
 
 import 'dart:io';
 
 Future<String> getVersion(var rootPath) {
   var suffix = Platform.operatingSystem == 'windows' ? '.exe' : '';
   var printVersionScript = rootPath.resolve("tools/print_version.py");
-  return Process.run("python$suffix",
-                     [printVersionScript.toFilePath()]).then((result) {
+  return Process
+      .run("python$suffix", [printVersionScript.toFilePath()]).then((result) {
     if (result.exitCode != 0) {
       throw "Could not generate version";
     }
     return result.stdout.trim();
   });
 }
 
 Future<String> getSnapshotGenerationFile(var args, var rootPath) {
   var dart2js = rootPath.resolve(args["dart2js_main"]);
   return getVersion(rootPath).then((version) {
-    var snapshotGenerationText =
-"""
+    var snapshotGenerationText = """
 import '${dart2js.toFilePath(windows: false)}' as dart2jsMain;
 import 'dart:io';
 
 void main(List<String> arguments) {
   if (arguments.length < 1) throw "No tool given as argument";
   String tool = arguments[0];
   if (tool == "dart2js") {
     dart2jsMain.BUILD_ID = "$version";
     dart2jsMain.main(arguments.skip(1).toList());
   }
 }
 
 """;
     return snapshotGenerationText;
   });
 }
 
 Future<String> getDart2jsSnapshotGenerationFile(var args, var rootPath) {
   var dart2js = rootPath.resolve(args["dart2js_main"]);
   return getVersion(rootPath).then((version) {
-    var snapshotGenerationText =
-"""
+    var snapshotGenerationText = """
 import '${dart2js.toFilePath(windows: false)}' as dart2jsMain;
 
 void main(List<String> arguments) {
   dart2jsMain.BUILD_ID = "$version";
   dart2jsMain.main(arguments);
 }
 """;
     return snapshotGenerationText;
   });
 }
 
 void writeSnapshotFile(var path, var content) {
-    File file = new File(path);
-    var writer = file.openSync(mode: FileMode.WRITE);
-    writer.writeStringSync(content);
-    writer.close();
+  File file = new File(path);
+  var writer = file.openSync(mode: FileMode.WRITE);
+  writer.writeStringSync(content);
+  writer.close();
 }
 
 /**
  * Takes the following arguments:
  * --output_dir=val     The full path to the output_dir.
  * --dart2js_main=val   The path to the dart2js main script relative to root.
  */
 void main(List<String> arguments) {
   var validArguments = ["--output_dir", "--dart2js_main"];
   var args = {};
@@ skipping 14 matching lines @@
   getSnapshotGenerationFile(args, rootPath).then((result) {
     var wrapper = "${args['output_dir']}/utils_wrapper.dart";
     writeSnapshotFile(wrapper, result);
   });
 
   getDart2jsSnapshotGenerationFile(args, rootPath).then((result) {
     var wrapper = "${args['output_dir']}/dart2js.dart";
     writeSnapshotFile(wrapper, result);
   });
 }