Add 4 ARIA 1.1 attributes using new sparse attribute interface.

third_party/WebKit/Source/core/html/HTMLAttributeNames.in

Index: third_party/WebKit/Source/core/html/HTMLAttributeNames.in
diff --git a/third_party/WebKit/Source/core/html/HTMLAttributeNames.in b/third_party/WebKit/Source/core/html/HTMLAttributeNames.in
index 697bfa599b3096be592f3da62f4a2015c9d81c4e..6ae73c6bc702d144bcbbf3d042edb44b67fa596f 100644
--- a/third_party/WebKit/Source/core/html/HTMLAttributeNames.in
+++ b/third_party/WebKit/Source/core/html/HTMLAttributeNames.in
@@ -26,8 +26,10 @@ aria-colspan
 aria-controls
 aria-current
 aria-describedby
+aria-details
 aria-disabled
 aria-dropeffect
+aria-errormessage
 aria-expanded
 aria-flowto
 aria-grabbed
@@ -35,6 +37,7 @@ aria-haspopup
 aria-help
 aria-hidden
 aria-invalid
+aria-keyshortcuts
 aria-label
 aria-labeledby
 aria-labelledby
@@ -50,6 +53,7 @@ aria-pressed
 aria-readonly
 aria-relevant
 aria-required
+aria-roledescription
 aria-rowcount
 aria-rowindex
 aria-rowspan