Implement CSS: scroll-boundary-behavior

third_party/WebKit/Source/core/css/parser/CSSParserFastPaths.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/css/parser/CSSParserFastPaths.h"
 
 #include "core/StylePropertyShorthand.h"
 #include "core/css/CSSColorValue.h"
 #include "core/css/CSSFunctionValue.h"
 #include "core/css/CSSIdentifierValue.h"
@@ skipping 842 matching lines @@
     case CSSPropertyWhiteSpace:
       return value_id == CSSValueNormal || value_id == CSSValuePre ||
              value_id == CSSValuePreWrap || value_id == CSSValuePreLine ||
              value_id == CSSValueNowrap;
     case CSSPropertyWordBreak:
       return value_id == CSSValueNormal || value_id == CSSValueBreakAll ||
              value_id == CSSValueKeepAll || value_id == CSSValueBreakWord;
     case CSSPropertyScrollSnapStop:
       DCHECK(RuntimeEnabledFeatures::CSSScrollSnapPointsEnabled());
       return value_id == CSSValueNormal || value_id == CSSValueAlways;
+    case CSSPropertyScrollBoundaryBehaviorX:
+      return value_id == CSSValueAuto || value_id == CSSValueContain ||
+             value_id == CSSValueNone;
+    case CSSPropertyScrollBoundaryBehaviorY:
+      return value_id == CSSValueAuto || value_id == CSSValueContain ||
+             value_id == CSSValueNone;
     default:
       NOTREACHED();
       return false;
   }
 }
 
 bool CSSParserFastPaths::IsKeywordPropertyID(CSSPropertyID property_id) {
   switch (property_id) {
     case CSSPropertyAlignmentBaseline:
     case CSSPropertyAll:
@@ skipping 33 matching lines @@
     case CSSPropertyOverflowWrap:
     case CSSPropertyOverflowX:
     case CSSPropertyOverflowY:
     case CSSPropertyBreakAfter:
     case CSSPropertyBreakBefore:
     case CSSPropertyBreakInside:
     case CSSPropertyPointerEvents:
     case CSSPropertyPosition:
     case CSSPropertyResize:
     case CSSPropertyScrollBehavior:
+    case CSSPropertyScrollBoundaryBehaviorX:
+    case CSSPropertyScrollBoundaryBehaviorY:
     case CSSPropertyShapeRendering:
     case CSSPropertySpeak:
     case CSSPropertyStrokeLinecap:
     case CSSPropertyStrokeLinejoin:
     case CSSPropertyTableLayout:
     case CSSPropertyTextAlign:
     case CSSPropertyTextAlignLast:
     case CSSPropertyTextAnchor:
     case CSSPropertyTextCombineUpright:
     case CSSPropertyTextDecorationStyle:
@@ skipping 312 matching lines @@
   if (IsColorPropertyID(property_id))
     return ParseColor(string, parser_mode);
   if (CSSValue* keyword = ParseKeywordValue(property_id, string, parser_mode))
     return keyword;
   if (CSSValue* transform = ParseSimpleTransform(property_id, string))
     return transform;
   return nullptr;
 }
 
 }  // namespace blink