Move ScrollSnapPoints to its own file.

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

Index: third_party/WebKit/Source/core/style/StyleScrollSnapData.h
diff --git a/third_party/WebKit/Source/core/style/StyleScrollSnapData.h b/third_party/WebKit/Source/core/style/StyleScrollSnapData.h
index f0ae6bcf8ff0400dbc1218f028cd4886e34de4b1..517f57b52660b114a6c33e07baa4ff1533141b97 100644
--- a/third_party/WebKit/Source/core/style/StyleScrollSnapData.h
+++ b/third_party/WebKit/Source/core/style/StyleScrollSnapData.h
@@ -26,6 +26,7 @@
 #ifndef StyleScrollSnapData_h
 #define StyleScrollSnapData_h
 
+#include "core/style/ScrollSnapPoints.h"
 #include "platform/LengthPoint.h"
 #include "platform/wtf/Allocator.h"
 #include "platform/wtf/RefCounted.h"
@@ -33,19 +34,6 @@
 
 namespace blink {
 
-struct ScrollSnapPoints {
-  DISALLOW_NEW();
-  Length repeat_offset;
-  bool has_repeat;
-  bool uses_elements;
-  ScrollSnapPoints();
-};
-
-bool operator==(const ScrollSnapPoints&, const ScrollSnapPoints&);
-inline bool operator!=(const ScrollSnapPoints& a, const ScrollSnapPoints& b) {
-  return !(a == b);
-}
-
 class StyleScrollSnapData : public RefCounted<StyleScrollSnapData> {
  public:
   static PassRefPtr<StyleScrollSnapData> Create() {