Move border-*-width out of BorderValue and store on SurroundData in ComputedStyle instead

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

Index: third_party/WebKit/Source/core/css/CSSProperties.json5
diff --git a/third_party/WebKit/Source/core/css/CSSProperties.json5 b/third_party/WebKit/Source/core/css/CSSProperties.json5
index 6d3486ccedd946f7396a41d6ebcce7710ec6dc7a..e3736112ea09c4fb3d87b104257fcbd2eda865ea 100644
--- a/third_party/WebKit/Source/core/css/CSSProperties.json5
+++ b/third_party/WebKit/Source/core/css/CSSProperties.json5
@@ -69,6 +69,14 @@
       value_type: "str"
     },
 
+    // - field_size
+    // Number of bits needed to store this field. Only used for storage_only
+    // fields. If specified, the field will be stored as bit field. Otherwise
+    // it will be stored as a normal data member.
+    field_size: {
+      valid_type: "int",
+    },
+
     // - field_template
     // Affects how the interface to this field is generated.
     // TODO(sashab, meade): Remove this once TypedOM types are specified for
@@ -682,6 +690,11 @@
       interpolable: true,
       keywords: ["thin", "medium", "thick"],
       typedom_types: ["Length"],
+      field_template: "storage_only",
+      type_name: "unsigned",
+      field_size : 26,
+      default_value: "WidthToFixedPoint(3)",
+      field_group: "surround",
     },
     {
       name: "border-collapse",
@@ -743,6 +756,11 @@
       interpolable: true,
       keywords: ["thin", "medium", "thick"],
       typedom_types: ["Length"],
+      field_template: "storage_only",
+      type_name: "unsigned",
+      field_size : 26,
+      default_value: "WidthToFixedPoint(3)",
+      field_group: "surround",
     },
     {
       name: "border-right-color",
@@ -764,6 +782,11 @@
       interpolable: true,
       keywords: ["thin", "medium", "thick"],
       typedom_types: ["Length"],
+      field_template: "storage_only",
+      type_name: "unsigned",
+      field_size : 26,
+      default_value: "WidthToFixedPoint(3)",
+      field_group: "surround",
     },
     {
       name: "border-top-color",
@@ -808,6 +831,11 @@
       keywords: ["thin", "medium", "thick"],
       supports_percentage: true,
       typedom_types: ["Length"],
+      field_template: "storage_only",
+      type_name: "unsigned",
+      field_size : 26,
+      default_value: "WidthToFixedPoint(3)",
+      field_group: "surround",
     },
     {
       name: "bottom",