Add sparse accessibility attribute interface to Blink

third_party/WebKit/Source/web/AssertMatchingEnums.cpp

Index: third_party/WebKit/Source/web/AssertMatchingEnums.cpp
diff --git a/third_party/WebKit/Source/web/AssertMatchingEnums.cpp b/third_party/WebKit/Source/web/AssertMatchingEnums.cpp
index 3e07f79c8912c15640e1f13ebada5fd9d526226b..ce400864d9367e085b67aefa9a9e7e99937ca6ad 100644
--- a/third_party/WebKit/Source/web/AssertMatchingEnums.cpp
+++ b/third_party/WebKit/Source/web/AssertMatchingEnums.cpp
@@ -413,6 +413,13 @@ STATIC_ASSERT_ENUM(WebAXDescriptionFromRelatedElement,
 STATIC_ASSERT_ENUM(WebAXTextAffinityUpstream, TextAffinity::Upstream);
 STATIC_ASSERT_ENUM(WebAXTextAffinityDownstream, TextAffinity::Downstream);
 
+STATIC_ASSERT_ENUM(WebAXObjectAttribute::AriaActiveDescendant,
+                   AXObjectAttribute::AriaActiveDescendant);
+STATIC_ASSERT_ENUM(WebAXObjectVectorAttribute::AriaControls,
+                   AXObjectVectorAttribute::AriaControls);
+STATIC_ASSERT_ENUM(WebAXObjectVectorAttribute::AriaFlowTo,
+                   AXObjectVectorAttribute::AriaFlowTo);
+
 STATIC_ASSERT_ENUM(WebApplicationCacheHost::Uncached,
                    ApplicationCacheHost::kUncached);
 STATIC_ASSERT_ENUM(WebApplicationCacheHost::Idle, ApplicationCacheHost::kIdle);