Fix up static analysis errors introduced by Futures CL.

sdk/lib/html/dartium/html_dartium.dart

Index: sdk/lib/html/dartium/html_dartium.dart
diff --git a/sdk/lib/html/dartium/html_dartium.dart b/sdk/lib/html/dartium/html_dartium.dart
index 4813f54fa03f231306c5f605d5719741f1c09814..5d6a895322352ef8da0d71d1a289ffd27498cfca 100644
--- a/sdk/lib/html/dartium/html_dartium.dart
+++ b/sdk/lib/html/dartium/html_dartium.dart
@@ -21177,6 +21177,21 @@ class RtcPeerConnection extends EventTarget {
    * the current platform.
    */
   static bool get supported => true;
+  Future<RtcSessionDescription> createOffer([Map mediaConstraints]) {
+    var completer = new Completer<RtcSessionDescription>();
+    _createOffer(
+        (value) { completer.complete(value); },
+        (error) { completer.completeError(error); }, mediaConstraints);
+    return completer.future;
+  }
+
+  Future<RtcSessionDescription> createAnswer([Map mediaConstraints]) {
+    var completer = new Completer<RtcSessionDescription>();
+    _createAnswer(
+        (value) { completer.complete(value); },
+        (error) { completer.completeError(error); }, mediaConstraints);
+    return completer.future;
+  }
   RtcPeerConnection.internal() : super.internal();
 
   @DomName('RTCPeerConnection.addstreamEvent')
@@ -21264,14 +21279,6 @@ class RtcPeerConnection extends EventTarget {
   @DocsEditable
   void _createAnswer(_RtcSessionDescriptionCallback successCallback, [_RtcErrorCallback failureCallback, Map mediaConstraints]) native "RTCPeerConnection_createAnswer_Callback";
 
-  Future<RtcSessionDescription> createAnswer([Map mediaConstraints]) {
-    var completer = new Completer<RtcSessionDescription>();
-    _createAnswer(mediaConstraints,
-        (value) { completer.complete(value); },
-        (error) { completer.completeError(error); });
-    return completer.future;
-  }
-
   @DomName('RTCPeerConnection.createDTMFSender')
   @DocsEditable
   RtcdtmfSender createDtmfSender(MediaStreamTrack track) native "RTCPeerConnection_createDTMFSender_Callback";
@@ -21284,14 +21291,6 @@ class RtcPeerConnection extends EventTarget {
   @DocsEditable
   void _createOffer(_RtcSessionDescriptionCallback successCallback, [_RtcErrorCallback failureCallback, Map mediaConstraints]) native "RTCPeerConnection_createOffer_Callback";
 
-  Future<RtcSessionDescription> createOffer([Map mediaConstraints]) {
-    var completer = new Completer<RtcSessionDescription>();
-    _createOffer(mediaConstraints,
-        (value) { completer.complete(value); },
-        (error) { completer.completeError(error); });
-    return completer.future;
-  }
-
   @DomName('RTCPeerConnection.dispatchEvent')
   @DocsEditable
   bool dispatchEvent(Event event) native "RTCPeerConnection_dispatchEvent_Callback";
@@ -23155,14 +23154,11 @@ class StorageEvent extends Event {
   void $dom_initStorageEvent(String typeArg, bool canBubbleArg, bool cancelableArg, String keyArg, String oldValueArg, String newValueArg, String urlArg, Storage storageAreaArg) native "StorageEvent_initStorageEvent_Callback";
 
 }
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// 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.
 
-// WARNING: Do not edit - generated code.
 
-
-@DocsEditable
 @DomName('StorageInfo')
 class StorageInfo extends NativeFieldWrapperClass1 {
   StorageInfo.internal();
@@ -23175,14 +23171,6 @@ class StorageInfo extends NativeFieldWrapperClass1 {
   @DocsEditable
   void _queryUsageAndQuota(int storageType, [_StorageInfoUsageCallback usageCallback, _StorageInfoErrorCallback errorCallback]) native "StorageInfo_queryUsageAndQuota_Callback";
 
-  Future<int> queryUsageAndQuota(int storageType) {
-    var completer = new Completer<int>();
-    _queryUsageAndQuota(storageType,
-        (value) { completer.complete(value); },
-        (error) { completer.completeError(error); });
-    return completer.future;
-  }
-
   @DomName('StorageInfo.requestQuota')
   @DocsEditable
   void _requestQuota(int storageType, int newQuotaInBytes, [StorageInfoQuotaCallback quotaCallback, _StorageInfoErrorCallback errorCallback]) native "StorageInfo_requestQuota_Callback";
@@ -23195,6 +23183,26 @@ class StorageInfo extends NativeFieldWrapperClass1 {
     return completer.future;
   }
 
+  Future<StorageInfoUsage> queryUsageAndQuota(int storageType) {
+    var completer = new Completer<StorageInfoUsage>();
+    _queryUsageAndQuota(storageType,
+        (currentUsageInBytes, currentQuotaInBytes) { 
+          completer.complete(new StorageInfoUsage(currentUsageInBytes, 
+              currentQuotaInBytes));
+        },
+        (error) { completer.completeError(error); });
+    return completer.future;
+  }
+}
+
+/** 
+ * A simple container class for the two values that are returned from the
+ * futures in requestQuota and queryUsageAndQuota.
+ */
+class StorageInfoUsage {
+  final int currentUsageInBytes;
+  final int currentQuotaInBytes;
+  const StorageInfoUsage(this.currentUsageInBytes, this.currentQuotaInBytes);
 }
 // 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
@@ -34638,7 +34646,7 @@ class _HttpRequestUtils {
                             onComplete(HttpRequest request),
                             bool withCredentials) {
     final request = new HttpRequest();
-    request.open('GET', url, true);
+    request.open('GET', url, async: true);
 
     request.withCredentials = withCredentials;