Restructure type tracking in StyleValues to work better with new numeric types

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 8c2b6e32669c419dd777ee71248b6360d796771f..636d758638484f1649cc2b6de19c6de5b2d82411 100644
--- a/third_party/WebKit/Source/core/css/CSSProperties.json5
+++ b/third_party/WebKit/Source/core/css/CSSProperties.json5
@@ -140,18 +140,27 @@
     // - separator
     // The property supports a list of values, and when there is more than one,
     // it is separated with this character.
-    // - supports_percentage
-    // The property supports percentage types.
     typedom_types: {
       default: [],
+      valid_type: "list",
+      valid_values: [
+        "Angle",
+        "Flex",
+        "Frequency",
+        "Length",
+        "Number",
+        "Percent",
+        "Position",
+        "Resolution",
+        "Time",
+        "Transform",
+        "Unparsed",
+        "Image"
+      ],
     },
     separator: {
       valid_values: [",", " ", "/"],
     },
-    supports_percentage: {
-      default: false,
-      valid_type: "bool",
-    },
 
     // Flags which go into CSSPropertyMetadata:
     // - interpolable
@@ -718,6 +727,7 @@
       initial: "InitialBorderWidth",
       interpolable: true,
       keywords: ["thin", "medium", "thick"],
+      typedom_types: ["Length"],
       field_template: "storage_only",
       include_paths: ["platform/LayoutUnit.h"],
       type_name: "LayoutUnit",
@@ -790,6 +800,7 @@
       initial: "InitialBorderWidth",
       interpolable: true,
       keywords: ["thin", "medium", "thick"],
+      typedom_types: ["Length"],
       field_template: "storage_only",
       include_paths: ["platform/LayoutUnit.h"],
       type_name: "LayoutUnit",
@@ -822,6 +833,7 @@
       initial: "InitialBorderWidth",
       interpolable: true,
       keywords: ["thin", "medium", "thick"],
+      typedom_types: ["Length"],
       field_template: "storage_only",
       include_paths: ["platform/LayoutUnit.h"],
       type_name: "LayoutUnit",
@@ -878,7 +890,7 @@
       initial: "InitialBorderWidth",
       interpolable: true,
       keywords: ["thin", "medium", "thick"],
-      supports_percentage: true,
+      typedom_types: ["Length"],
       field_template: "storage_only",
       include_paths: ["platform/LayoutUnit.h"],
       type_name: "LayoutUnit",
@@ -892,7 +904,6 @@
       converter: "ConvertLengthOrAuto",
       interpolable: true,
       keywords: ["auto"],
-      supports_percentage: true,
       field_template: "external",
       include_paths: ["platform/Length.h"],
       type_name: "Length",
@@ -1263,7 +1274,6 @@
       is_descriptor: true,
       interpolable: true,
       keywords: ["auto", "fit-content", "min-content", "max-content"],
-      supports_percentage: true,
       field_template: "external",
       include_paths: ["platform/Length.h"],
       type_name: "Length",
@@ -1329,7 +1339,6 @@
       converter: "ConvertLengthOrAuto",
       interpolable: true,
       keywords: ["auto"],
-      supports_percentage: true,
       field_template: "external",
       include_paths: ["platform/Length.h"],
       type_name: "Length",
@@ -1790,7 +1799,6 @@
       converter: "ConvertLengthOrAuto",
       interpolable: true,
       keywords: ["auto"],
-      supports_percentage: true,
       field_template: "external",
       include_paths: ["platform/Length.h"],
       type_name: "Length",
@@ -2159,7 +2167,6 @@
       converter: "ConvertLengthOrAuto",
       interpolable: true,
       keywords: ["auto"],
-      supports_percentage: true,
       field_template: "external",
       include_paths: ["platform/Length.h"],
       type_name: "Length",
@@ -2727,7 +2734,6 @@
       is_descriptor: true,
       interpolable: true,
       keywords: ["auto", "fit-content", "min-content", "max-content"],
-      supports_percentage: true,
       field_template: "external",
       include_paths: ["platform/Length.h"],
       type_name: "Length",