| Index: sdk/lib/svg/dartium/svg_dartium.dart | 
| diff --git a/sdk/lib/svg/dartium/svg_dartium.dart b/sdk/lib/svg/dartium/svg_dartium.dart | 
| index c468fccf358932c29031368e61dba182939df693..ccab93430e731fa92805e36f3bff955c7fc7819b 100644 | 
| --- a/sdk/lib/svg/dartium/svg_dartium.dart | 
| +++ b/sdk/lib/svg/dartium/svg_dartium.dart | 
| @@ -3642,6 +3642,16 @@ class LengthList extends NativeFieldWrapperClass1 implements List<Length> { | 
| throw new StateError("No elements"); | 
| } | 
|  | 
| +  Length get single { | 
| +    if (length == 1) return this[0]; | 
| +    if (length == 0) throw new StateError("No elements"); | 
| +    throw new StateError("More than one element"); | 
| +  } | 
| + | 
| +  Length min([int compare(Length a, Length b)]) => _Collections.minInList(this, compare); | 
| + | 
| +  Length max([int compare(Length a, Length b)]) => _Collections.maxInList(this, compare); | 
| + | 
| Length removeAt(int pos) { | 
| throw new UnsupportedError("Cannot removeAt on immutable List."); | 
| } | 
| @@ -4356,6 +4366,16 @@ class NumberList extends NativeFieldWrapperClass1 implements List<Number> { | 
| throw new StateError("No elements"); | 
| } | 
|  | 
| +  Number get single { | 
| +    if (length == 1) return this[0]; | 
| +    if (length == 0) throw new StateError("No elements"); | 
| +    throw new StateError("More than one element"); | 
| +  } | 
| + | 
| +  Number min([int compare(Number a, Number b)]) => _Collections.minInList(this, compare); | 
| + | 
| +  Number max([int compare(Number a, Number b)]) => _Collections.maxInList(this, compare); | 
| + | 
| Number removeAt(int pos) { | 
| throw new UnsupportedError("Cannot removeAt on immutable List."); | 
| } | 
| @@ -5478,6 +5498,16 @@ class PathSegList extends NativeFieldWrapperClass1 implements List<PathSeg> { | 
| throw new StateError("No elements"); | 
| } | 
|  | 
| +  PathSeg get single { | 
| +    if (length == 1) return this[0]; | 
| +    if (length == 0) throw new StateError("No elements"); | 
| +    throw new StateError("More than one element"); | 
| +  } | 
| + | 
| +  PathSeg min([int compare(PathSeg a, PathSeg b)]) => _Collections.minInList(this, compare); | 
| + | 
| +  PathSeg max([int compare(PathSeg a, PathSeg b)]) => _Collections.maxInList(this, compare); | 
| + | 
| PathSeg removeAt(int pos) { | 
| throw new UnsupportedError("Cannot removeAt on immutable List."); | 
| } | 
| @@ -6445,6 +6475,16 @@ class StringList extends NativeFieldWrapperClass1 implements List<String> { | 
| throw new StateError("No elements"); | 
| } | 
|  | 
| +  String get single { | 
| +    if (length == 1) return this[0]; | 
| +    if (length == 0) throw new StateError("No elements"); | 
| +    throw new StateError("More than one element"); | 
| +  } | 
| + | 
| +  String min([int compare(String a, String b)]) => _Collections.minInList(this, compare); | 
| + | 
| +  String max([int compare(String a, String b)]) => _Collections.maxInList(this, compare); | 
| + | 
| String removeAt(int pos) { | 
| throw new UnsupportedError("Cannot removeAt on immutable List."); | 
| } | 
| @@ -7707,6 +7747,16 @@ class TransformList extends NativeFieldWrapperClass1 implements List<Transform> | 
| throw new StateError("No elements"); | 
| } | 
|  | 
| +  Transform get single { | 
| +    if (length == 1) return this[0]; | 
| +    if (length == 0) throw new StateError("No elements"); | 
| +    throw new StateError("More than one element"); | 
| +  } | 
| + | 
| +  Transform min([int compare(Transform a, Transform b)]) => _Collections.minInList(this, compare); | 
| + | 
| +  Transform max([int compare(Transform a, Transform b)]) => _Collections.maxInList(this, compare); | 
| + | 
| Transform removeAt(int pos) { | 
| throw new UnsupportedError("Cannot removeAt on immutable List."); | 
| } | 
| @@ -8251,6 +8301,16 @@ class _ElementInstanceList extends NativeFieldWrapperClass1 implements List<Elem | 
| throw new StateError("No elements"); | 
| } | 
|  | 
| +  ElementInstance get single { | 
| +    if (length == 1) return this[0]; | 
| +    if (length == 0) throw new StateError("No elements"); | 
| +    throw new StateError("More than one element"); | 
| +  } | 
| + | 
| +  ElementInstance min([int compare(ElementInstance a, ElementInstance b)]) => _Collections.minInList(this, compare); | 
| + | 
| +  ElementInstance max([int compare(ElementInstance a, ElementInstance b)]) => _Collections.maxInList(this, compare); | 
| + | 
| ElementInstance removeAt(int pos) { | 
| throw new UnsupportedError("Cannot removeAt on immutable List."); | 
| } | 
|  |