First Implementation of Snapped Points

ui/events/gestures/blink/web_gesture_curve_impl.cc

 // 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 "ui/events/gestures/blink/web_gesture_curve_impl.h"
 
 #include <limits.h>
 
 #include <utility>
 
@@ skipping 135 matching lines @@
   if (delta.IsZero())
     return still_active;
 
   // scrollBy() could delete this curve if the animation is over, so don't touch
   // any member variables after making that call.
   bool did_scroll = target->ScrollBy(blink::WebFloatSize(delta),
                                      blink::WebFloatSize(velocity));
   return did_scroll && still_active;
 }
 
+void WebGestureCurveImpl::ComputeTotalScrollOffset(gfx::Vector2dF& offset) {
+  curve_->ComputeTotalScrollOffset(offset);
+}
+
+bool WebGestureCurveImpl::ResetCurveBySnappedOffset(
+    const gfx::Vector2dF& offset) {
+  return curve_->ResetCurveBySnappedOffset(offset);
+}
+
 }  // namespace ui