Reapply support for new Uint8ClampedArray in dart:dom.

lib/dom/src/native_FactoryProviders.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.
 
 // These factory providers are for interfaces that do not have factory providers
 // generated automatically from a Constructor or NamedConstructor extended
 // attribute.
 
 class _AudioContextFactoryProvider {
   factory AudioContext() => FactoryProviderImplementation.createAudioContext();
@@ skipping 23 matching lines @@
   factory Int32Array(int length) => FactoryProviderImplementation.I32(length);
   factory Int32Array.fromList(List<num> list) => FactoryProviderImplementation.I32(list);
   factory Int32Array.fromBuffer(ArrayBuffer buffer, [int byteOffset, int length])
       => FactoryProviderImplementation.I32(buffer, byteOffset, length);
 
   factory Uint8Array(int length) => FactoryProviderImplementation.U8(length);
   factory Uint8Array.fromList(List<num> list) => FactoryProviderImplementation.U8(list);
   factory Uint8Array.fromBuffer(ArrayBuffer buffer, [int byteOffset, int length])
       => FactoryProviderImplementation.U8(buffer, byteOffset, length);
 
+  factory Uint8ClampedArray(int length) => FactoryProviderImplementation.U8C(length);
+  factory Uint8ClampedArray.fromList(List<num> list) => FactoryProviderImplementation.U8C(list);
+  factory Uint8ClampedArray.fromBuffer(ArrayBuffer buffer, [int byteOffset, int length])
+      => FactoryProviderImplementation.U8C(buffer, byteOffset, length);
+
   factory Uint16Array(int length) => FactoryProviderImplementation.U16(length);
   factory Uint16Array.fromList(List<num> list) => FactoryProviderImplementation.U16(list);
   factory Uint16Array.fromBuffer(ArrayBuffer buffer, [int byteOffset, int length])
       => FactoryProviderImplementation.U16(buffer, byteOffset, length);
 
   factory Uint32Array(int length) => FactoryProviderImplementation.U32(length);
   factory Uint32Array.fromList(List<num> list) => FactoryProviderImplementation.U32(list);
   factory Uint32Array.fromBuffer(ArrayBuffer buffer, [int byteOffset, int length])
       => FactoryProviderImplementation.U32(buffer, byteOffset, length);
 }
@@ skipping 15 matching lines @@
       FactoryProviderImplementation.IDBKeyRange_lowerBound(bound, open);
 
   factory IDBKeyRange.upperBound(/*IDBKey*/ bound, [bool open = false]) =>
       FactoryProviderImplementation.IDBKeyRange_upperBound(bound, open);
 
   factory IDBKeyRange.bound(/*IDBKey*/ lower, /*IDBKey*/ upper,
                             [bool lowerOpen = false, bool upperOpen = false]) =>
       FactoryProviderImplementation.IDBKeyRange_bound(lower, upper,
                                                       lowerOpen, upperOpen);
 }