Implement CSS: scroll-boundary-behavior

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 a286a048d5f032dfb73902e1d1133dc3fc605285..14ddbccf860f8c4bd36d9ae38a6828bd3a8d92f6 100644
--- a/third_party/WebKit/Source/core/css/CSSProperties.json5
+++ b/third_party/WebKit/Source/core/css/CSSProperties.json5
@@ -2104,6 +2104,22 @@
       field_size: 2,
       default_value: "kScrollBehaviorAuto",
     },
+    {
+      name: "scroll-boundary-behavior-x",
+      default_value: "auto",
+      field_template: "keyword",
+      keywords: ["auto", "contain", "none"],
+      type_name: "EScrollBoundaryBehavior",
+      runtime_flag: "CSSScrollBoundaryBehavior",
+    },
+    {
+      name: "scroll-boundary-behavior-y",
+      default_value: "auto",
+      field_template: "keyword",
+      keywords: ["auto", "contain", "none"],
+      type_name: "EScrollBoundaryBehavior",
+      runtime_flag: "CSSScrollBoundaryBehavior",
+    },
     {
       name: "scroll-snap-type",
       api_class: true,
@@ -3822,6 +3838,11 @@
       api_class: true,
       api_methods: ["parseShorthand"],
     },
+    {
+      name: "scroll-boundary-behavior",
+      longhands: "scroll-boundary-behavior-x;scroll-boundary-behavior-y",
+      runtime_flag: "CSSScrollBoundaryBehavior",
+    },
     {
       name: "padding",
       longhands: "padding-top;padding-right;padding-bottom;padding-left",