Format all files under tools and utils directory.

tools/testing/dart/reset_safari.dart

 // Copyright (c) 2016, 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.
 
-
 /// Helper program for killing and resetting all Safari settings to a known
 /// state that works well for testing dart2js output in Safari.
 ///
 /// Warning: this will delete all your Safari settings and bookmarks.
 library testing.reset_safari;
 
-import 'dart:async' show
-    Future,
-    Timer;
+import 'dart:async' show Future, Timer;
 
-import 'dart:io' show
-    Directory,
-    File,
-    Platform,
-    Process,
-    ProcessResult;
+import 'dart:io' show Directory, File, Platform, Process, ProcessResult;
 
 const String defaultSafariBundleLocation = "/Applications/Safari.app/";
 
 const String relativeSafariLocation = "Contents/MacOS/Safari";
 
 const String lsofLocation = "/usr/sbin/lsof";
 
 const String killLocation = "/bin/kill";
 
 const String pkillLocation = "/usr/bin/pkill";
 
 const String safari = "com.apple.Safari";
 
 const String defaultsLocation = "/usr/bin/defaults";
 
 final List<String> safariSettings = <String>[
-    "Library/Caches/$safari",
-    "Library/Safari",
-    "Library/Saved Application State/$safari.savedState",
-    "Library/Caches/Metadata/Safari",
-    "Library/Preferences/$safari.plist",
+  "Library/Caches/$safari",
+  "Library/Safari",
+  "Library/Saved Application State/$safari.savedState",
+  "Library/Caches/Metadata/Safari",
+  "Library/Preferences/$safari.plist",
 ];
 
 const Duration defaultPollDelay = const Duration(milliseconds: 1);
 
 final String cpgi = "$safari.ContentPageGroupIdentifier";
 
 final String knownSafariPreference = '''
 {
     DefaultBrowserPromptingState2 = 2;
     StartPageViewControllerMode = 0;
@@ skipping 47 matching lines @@
     InstallExtensionUpdatesAutomatically = 0;
 
     ShowFullURLInSmartSearchField = 1;
 
     "$cpgi.WebKit2PlugInSnapshottingEnabled" = 0;
 }
 ''';
 
 Future<Null> get pollDelay => new Future.delayed(defaultPollDelay);
 
-String signalArgument(
-    String defaultSignal,
-    {bool force: false,
-     bool testOnly: false}) {
+String signalArgument(String defaultSignal,
+    {bool force: false, bool testOnly: false}) {
   if (force && testOnly) {
     throw new ArgumentError("[force] and [testOnly] can't both be true.");
   }
   if (force) return "-KILL";
   if (testOnly) return "-0";
   return defaultSignal;
 }
 
-Future<int> kill(
-    List<String> pids,
-    {bool force: false,
-     bool testOnly: false}) async {
-  List<String> arguments =
-      <String>[signalArgument("-TERM", force: force, testOnly: testOnly)]
-      ..addAll(pids);
+Future<int> kill(List<String> pids,
+    {bool force: false, bool testOnly: false}) async {
+  List<String> arguments = <String>[
+    signalArgument("-TERM", force: force, testOnly: testOnly)
+  ]..addAll(pids);
   ProcessResult result = await Process.run(killLocation, arguments);
   return result.exitCode;
 }
 
-Future<int> pkill(
-    String pattern,
-    {bool force: false,
-     bool testOnly: false}) async {
+Future<int> pkill(String pattern,
+    {bool force: false, bool testOnly: false}) async {
   List<String> arguments = <String>[
-      signalArgument("-HUP", force: force, testOnly: testOnly),
-      pattern];
+    signalArgument("-HUP", force: force, testOnly: testOnly),
+    pattern
+  ];
   ProcessResult result = await Process.run(pkillLocation, arguments);
   return result.exitCode;
 }
 
 Uri validatedBundleName(Uri bundle) {
   if (bundle == null) return Uri.base.resolve(defaultSafariBundleLocation);
   if (!bundle.path.endsWith("/")) {
-    throw new ArgumentError(
-        "Bundle ('$bundle') must end with a slash ('/').");
+    throw new ArgumentError("Bundle ('$bundle') must end with a slash ('/').");
   }
   return bundle;
 }
 
 Future<Null> killSafari({Uri bundle}) async {
   bundle = validatedBundleName(bundle);
   Uri safariBinary = bundle.resolve(relativeSafariLocation);
-  ProcessResult result = await Process.run(
-      lsofLocation, ["-t", safariBinary.toFilePath()]);
+  ProcessResult result =
+      await Process.run(lsofLocation, ["-t", safariBinary.toFilePath()]);
   if (result.exitCode == 0) {
     String stdout = result.stdout;
     List<String> pids = new List<String>.from(
         stdout.split("\n").where((String line) => !line.isEmpty));
     Timer timer = new Timer(const Duration(seconds: 10), () {
       print("Kill -9 Safari $pids");
       kill(pids, force: true);
     });
     int exitCode = await kill(pids);
     while (exitCode == 0) {
@@ skipping 34 matching lines @@
 
 Future<Null> resetSafariSettings() async {
   String home = Platform.environment["HOME"];
   if (!home.endsWith("/")) {
     home = "$home/";
   }
   Uri homeDirectory = Uri.base.resolve(home);
   for (String setting in safariSettings) {
     await deleteIfExists(homeDirectory.resolve(setting));
   }
-  ProcessResult result = await Process.run(
-      defaultsLocation, <String>["write", safari, knownSafariPreference]);
+  ProcessResult result = await Process
+      .run(defaultsLocation, <String>["write", safari, knownSafariPreference]);
   if (result.exitCode != 0) {
     throw "Unable to reset Safari settings: ${result.stdout}${result.stderr}";
   }
 }
 
 Future<Null> killAndResetSafari({Uri bundle}) async {
   bundle = validatedBundleName(bundle);
   await killSafari(bundle: bundle);
   await resetSafariSettings();
 }
 
 Future<Null> main() async {
   await killAndResetSafari();
 }