First Implementation of Snapped Points

ui/events/gestures/blink/web_gesture_curve_impl.h

 // 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.
 
 #ifndef UI_EVENTS_GESTURES_BLINK_WEB_GESTURE_CURVE_IMPL_H_
 #define UI_EVENTS_GESTURES_BLINK_WEB_GESTURE_CURVE_IMPL_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 20 matching lines @@
       bool on_main_thread);
   static std::unique_ptr<blink::WebGestureCurve> CreateFromUICurveForTesting(
       std::unique_ptr<GestureCurve> curve,
       const gfx::Vector2dF& initial_offset);
 
   ~WebGestureCurveImpl() override;
 
   // WebGestureCurve implementation.
   bool Apply(double time, blink::WebGestureCurveTarget* target) override;
 
+  void ComputeTotalScrollOffset(gfx::Vector2dF& offset) override;
+
+  bool ResetCurveBySnappedOffset(const gfx::Vector2dF& offset) override;
+
  private:
   enum class ThreadType {
     MAIN,
     IMPL,
     TEST
   };
 
   WebGestureCurveImpl(std::unique_ptr<GestureCurve> curve,
                       const gfx::Vector2dF& initial_offset,
                       ThreadType animating_thread_type);
 
   std::unique_ptr<GestureCurve> curve_;
 
   gfx::Vector2dF last_offset_;
 
   ThreadType animating_thread_type_;
   int64_t ticks_since_first_animate_;
   double first_animate_time_;
   double last_animate_time_;
 
   DISALLOW_COPY_AND_ASSIGN(WebGestureCurveImpl);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_GESTURES_BLINK_WEB_GESTURE_CURVE_IMPL_H_