Adding synthetic touch/mouse drag [Part1]

content/browser/renderer_host/input/synthetic_smooth_drag_gesture.h

Index: content/browser/renderer_host/input/synthetic_smooth_drag_gesture.h
diff --git a/content/browser/renderer_host/input/synthetic_smooth_drag_gesture.h b/content/browser/renderer_host/input/synthetic_smooth_drag_gesture.h
new file mode 100644
index 0000000000000000000000000000000000000000..05de2426c7c7ad81e18bddac745f1634e3a2f760
--- /dev/null
+++ b/content/browser/renderer_host/input/synthetic_smooth_drag_gesture.h
@@ -0,0 +1,38 @@
+// 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_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_SMOOTH_DRAG_GESTURE_H_
+#define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_SMOOTH_DRAG_GESTURE_H_
+
+#include "content/browser/renderer_host/input/synthetic_smooth_move_gesture.h"
+
+#include "content/common/input/synthetic_smooth_drag_gesture_params.h"
+
+namespace content {
+class CONTENT_EXPORT SyntheticSmoothDragGesture : public SyntheticGesture {
+ public:
+  explicit SyntheticSmoothDragGesture(
+      const SyntheticSmoothDragGestureParams& params);
+  ~SyntheticSmoothDragGesture() override;
+
+  // SyntheticGesture implementation:
+  SyntheticGesture::Result ForwardInputEvents(
+      const base::TimeTicks& timestamp,
+      SyntheticGestureTarget* target) override;
+
+ private:
+  static SyntheticSmoothMoveGestureParams::InputType GetInputSourceType(
+      SyntheticGestureParams::GestureSourceType gesture_source_type);
+
+  bool InitializeMoveGesture(
+      SyntheticGestureParams::GestureSourceType gesture_type,
+      SyntheticGestureTarget* target);
+
+  scoped_ptr<SyntheticSmoothMoveGesture> move_gesture_;
+  SyntheticSmoothDragGestureParams params_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_SMOOTH_DRAG_GESTURE_H_