Update the snap points css properties

third_party/WebKit/Source/core/style/ComputedStyleConstants.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  *
@@ skipping 342 matching lines @@
 static const float kMaximumAllowedFontSize = 10000.0f;
 
 enum CSSBoxType {
   kBoxMissing = 0,
   kMarginBox,
   kBorderBox,
   kPaddingBox,
   kContentBox
 };
 
-enum ScrollSnapType {
-  kScrollSnapTypeNone,
-  kScrollSnapTypeMandatory,
-  kScrollSnapTypeProximity
+enum SnapAxis {
+  kSnapAxisBoth,
+  kSnapAxisX,
+  kSnapAxisY,
+  kSnapAxisBlock,
+  kSnapAxisInline,
+};
+
+enum SnapStrictness { kSnapStrictnessProximity, kSnapStrictnessMandatory };
+
+enum SnapAlignment {
+  kSnapAlignmentNone,
+  kSnapAlignmentStart,
+  kSnapAlignmentEnd,
+  kSnapAlignmentCenter
 };
 
 enum AutoRepeatType { kNoAutoRepeat, kAutoFill, kAutoFit };
 
 // Page size type.
 // StyleRareNonInheritedData::page_size_ is meaningful only when
 // StyleRareNonInheritedData::page_size_type_ is kResolved.
 enum class PageSizeType {
   kAuto,       // size: auto
   kLandscape,  // size: landscape
   kPortrait,   // size: portrait
   kResolved    // Size is fully resolved.
 };
 
 }  // namespace blink
 
 #endif  // ComputedStyleConstants_h