Adding synthetic touch/mouse drag [Part1]

content/common/input/synthetic_smooth_drag_gesture_params.h

-// Copyright 2013 The Chromium Authors. All rights reserved.
+// Copyright 2015 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_COMMON_INPUT_SYNTHETIC_SMOOTH_SCROLL_GESTURE_PARAMS_H_
-#define CONTENT_COMMON_INPUT_SYNTHETIC_SMOOTH_SCROLL_GESTURE_PARAMS_H_
+#ifndef CONTENT_COMMON_INPUT_SYNTHETIC_SMOOTH_DRAG_GESTURE_PARAMS_H_
+#define CONTENT_COMMON_INPUT_SYNTHETIC_SMOOTH_DRAG_GESTURE_PARAMS_H_
 
 #include <vector>
 
 #include "content/common/content_export.h"
 #include "content/common/input/synthetic_gesture_params.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/vector2d.h"
 
 namespace content {
 
-struct CONTENT_EXPORT SyntheticSmoothScrollGestureParams
+struct CONTENT_EXPORT SyntheticSmoothDragGestureParams
     : public SyntheticGestureParams {
  public:
-  SyntheticSmoothScrollGestureParams();
-  SyntheticSmoothScrollGestureParams(
-      const SyntheticSmoothScrollGestureParams& other);
-  ~SyntheticSmoothScrollGestureParams() override;
+  SyntheticSmoothDragGestureParams();
+  SyntheticSmoothDragGestureParams(
+      const SyntheticSmoothDragGestureParams& other);
+  ~SyntheticSmoothDragGestureParams() override;
 
   GestureType GetGestureType() const override;
 
-  gfx::Point anchor;
-  std::vector<gfx::Vector2d> distances;  // Positive X/Y to scroll left/up.
-  bool prevent_fling;  // Defaults to true.
+  gfx::PointF start_point;
+  std::vector<gfx::Vector2d> distances;
   int speed_in_pixels_s;

[picksi, 2015/02/19 11:50:18]

would pixels_per_second be a better name - that way it's obvious that its a
speed and the units are clear.

[ssid, 2015/02/20 10:58:55]

This will need to be changed in other files too. Will keep in hold for this CL.
Also I am not sure why it is named here.

 
-  static const SyntheticSmoothScrollGestureParams* Cast(
+  static const SyntheticSmoothDragGestureParams* Cast(
       const SyntheticGestureParams* gesture_params);
 };
 
 }  // namespace content
 
-#endif  // CONTENT_COMMON_INPUT_SYNTHETIC_SMOOTH_SCROLL_GESTURE_PARAMS_H_
+#endif  // CONTENT_COMMON_INPUT_SYNTHETIC_SMOOTH_DRAG_GESTURE_PARAMS_H_