Selection attributes changes from long to unsigned long

Source/core/editing/Selection.idl

Index: Source/core/editing/Selection.idl
diff --git a/Source/core/editing/Selection.idl b/Source/core/editing/Selection.idl
index a7ad07b414cbc02147f84e07a9b0386b600e5cb4..4d84614bab030ae551520260d0d9a84f99a2c0cf 100644
--- a/Source/core/editing/Selection.idl
+++ b/Source/core/editing/Selection.idl
@@ -29,35 +29,34 @@
 
 // http://w3c.github.io/selection-api/#idl-def-Selection
 
-// TODO(yoichio): All long types should be unsigned long. crbug.com/391673
 [
     ImplementedAs=DOMSelection,
     WillBeGarbageCollected,
 ] interface Selection {
     readonly attribute Node? anchorNode;
-    readonly attribute long anchorOffset;
+    readonly attribute unsigned long anchorOffset;
     readonly attribute Node? focusNode;
-    readonly attribute long focusOffset;
+    readonly attribute unsigned long focusOffset;
     readonly attribute boolean isCollapsed;
-    readonly attribute long rangeCount;
-    [RaisesException] Range getRangeAt(long index);
+    readonly attribute unsigned long rangeCount;
+    [RaisesException] Range getRangeAt(unsigned long index);
     void addRange(Range range);
     // TODO(yoichio): Implement removeRange. crbug.com/391673
     //void removeRange(Range range);
     void removeAllRanges();
-    // TODO(yoichio): The node argument should not be nullable. crbug.com/391673
+    // TODO(yoichio): The node argumendt should not be nullable. crbug.com/391673
     // TODO(philipj): The offset argument should not have a default value.
-    [RaisesException] void collapse(Node? node, optional long offset = 0);
+    [RaisesException] void collapse(Node? node, optional unsigned long offset = 0);
     [RaisesException] void collapseToStart();
     [RaisesException] void collapseToEnd();
     // TODO(philipj): The offset argument should not have a default value.
-    [RaisesException, TypeChecking=Interface] void extend(Node node, optional long offset = 0);
+    [RaisesException, TypeChecking=Interface] void extend(Node node, optional unsigned long offset = 0);
     // TODO(philipj): The arguments should be anchorNode, anchorOffset,
     // focusNode and focusOffset, and none of them should be optional.
     [MeasureAs=SelectionSetBaseAndExtent, RaisesException] void setBaseAndExtent([Default=Undefined] optional Node baseNode,
-                                                                                 [Default=Undefined] optional long baseOffset,
+                                                                                 [Default=Undefined] optional unsigned long baseOffset,
                                                                                  [Default=Undefined] optional Node extentNode,
-                                                                                 [Default=Undefined] optional long extentOffset);
+                                                                                 [Default=Undefined] optional unsigned long extentOffset);
     [RaisesException, TypeChecking=Interface] void selectAllChildren(Node node);
     [CustomElementCallbacks] void deleteFromDocument();
     // TODO(philipj): The arguments should not be optional.
@@ -71,9 +70,9 @@
 
     // https://github.com/w3c/selection-api/issues/34
     [MeasureAs=SelectionBaseNode] readonly attribute Node? baseNode;
-    [MeasureAs=SelectionBaseOffset] readonly attribute long baseOffset;
+    [MeasureAs=SelectionBaseOffset] readonly attribute unsigned long baseOffset;
     [MeasureAs=SelectionExtentNode] readonly attribute Node? extentNode;
-    [MeasureAs=SelectionExtentOffset] readonly attribute long extentOffset;
+    [MeasureAs=SelectionExtentOffset] readonly attribute unsigned long extentOffset;
 
     // https://github.com/w3c/selection-api/issues/14
     [MeasureAs=SelectionType] readonly attribute DOMString type;
@@ -87,5 +86,5 @@
                                             [Default=Undefined] optional DOMString granularity);
 
     // https://github.com/w3c/selection-api/issues/38
-    [ImplementedAs=collapse, MeasureAs=SelectionSetPosition, RaisesException] void setPosition(Node? node, optional long offset = 0);
+    [ImplementedAs=collapse, MeasureAs=SelectionSetPosition, RaisesException] void setPosition(Node? node, optional unsigned long offset = 0);
 };