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 968d9a4f6a5cfb99fa798ce64527f75b9f80658c..37828a820758767f53bad0ea15eaf349e9fd6203 100644
--- a/third_party/WebKit/Source/core/css/CSSProperties.json5
+++ b/third_party/WebKit/Source/core/css/CSSProperties.json5
@@ -2096,6 +2096,22 @@
       default_value: "kScrollBehaviorAuto",
       default_generated_functions: ["getter", "setter"],
     },
+    {
+      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,
@@ -3816,6 +3832,11 @@
       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"],