Supper Uint8Clamped in manually written factories.

lib/dom/src/native_FactoryProviders.dart

Index: lib/dom/src/native_FactoryProviders.dart
diff --git a/lib/dom/src/native_FactoryProviders.dart b/lib/dom/src/native_FactoryProviders.dart
index 74082985a140fbd307ff3f270f79ccce2085cbaf..a65799c1079297d75545954bf10aca1858a60271 100644
--- a/lib/dom/src/native_FactoryProviders.dart
+++ b/lib/dom/src/native_FactoryProviders.dart
@@ -41,6 +41,11 @@ class _TypedArrayFactoryProvider {
   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])