Attempt to linearize the scroll deltas created in RenderWidgetHostViewBase

content/browser/renderer_host/basic_mouse_wheel_smooth_scroll_gesture.h

+// Copyright (c) 2012 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 CONTENT_BROWSER_RENDERER_HOST_BASIC_MOUSE_WHEEL_SMOOTH_SCROLL_GESTURE_
+#define CONTENT_BROWSER_RENDERER_HOST_BASIC_MOUSE_WHEEL_SMOOTH_SCROLL_GESTURE_
+
+#include "base/time.h"
+#include "content/port/browser/smooth_scroll_gesture.h"
+
+namespace content {
+
+class RenderWidgetHost;
+
+class BasicMouseWheelSmoothScrollGesture : public SmoothScrollGesture {
+ public:
+  BasicMouseWheelSmoothScrollGesture(bool scroll_down, int pixels_to_scroll,
+                                     int mouse_event_x, int mouse_event_y);
+
+  virtual bool ForwardInputEvents(base::TimeTicks now,
+                                  RenderWidgetHost* host) OVERRIDE;
+ private:
+  virtual ~BasicMouseWheelSmoothScrollGesture();
+
+  bool scroll_down_;
+  int pixels_scrolled_;
+  int pixels_to_scroll_;
+  int mouse_event_x_;
+  int mouse_event_y_;
+  base::TimeTicks last_tick_time_;
+};
+
+}  // namespace content
+
+#endif