Make EIsolation an enum class.

third_party/WebKit/Source/core/css/ComputedStyleExtraFields.json5

 {
 // This file specifies fields in ComputedStyle that we would like to
 // generate, but are not CSS properties.
 
   parameters: {
     // If true, we do not include this field in ComputedStyleBase::InheritFrom
     // and ComputedStyleBase::CopyNonInheritedFromCached.
     custom_copy: {
       default: false,
     },
@@ skipping 455 matching lines @@
     // expressed by 'will-change: contents' includes descendants.
     {
       name: "SubtreeWillChangeContents",
       inherited: true,
       field_template: "primitive",
       type_name: "bool",
       default_value: "false",
       field_group: "rare-inherited",
     },
     {
-      name: "SelfOrAncestorHasDirAutoAttribute",
+      name: "RespectImageOrientation",

[shend, 2017/06/14 07:26:28]

what happened here?

[nainar, 2017/06/14 07:29:15]

i mistakenly imported changes from another CL.

       inherited: true,
       field_template: "storage_only",
       type_name: "bool",
       default_value: "false",
       field_size: 1,
       field_group: "rare-inherited",
     },
     {
-      name: "RespectImageOrientation",
+      name: "SelfOrAncestorHasDirAutoAttribute",

[shend, 2017/06/14 07:26:28]

same here.

[nainar, 2017/06/14 07:29:14]

i mistakenly imported changes from another CL.

       inherited: true,
       field_template: "storage_only",
       type_name: "bool",
       default_value: "false",
       field_size: 1,
       field_group: "rare-inherited",
     },
     // Though position: sticky is not itself an inherited property, being a
     // descendent of a sticky element changes some document lifecycle logic.
     {
@@ skipping 427 matching lines @@
       name: "ScrollSnapData",
       field_template: "storage_only",
       type_name: "StyleScrollSnapData",
       field_group: "rare-non-inherited",
       default_value: "",
       wrapper_pointer_name: "DataRef",
       include_paths: ["core/style/StyleScrollSnapData.h"],
     },
   ],
 }