Add the pointer type of pen to the synthetic WebMousEvent

content/browser/renderer_host/input/synthetic_mouse_driver.h

 // 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_MOUSE_DRIVER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_MOUSE_DRIVER_H_
 
 #include "base/macros.h"
 #include "content/browser/renderer_host/input/synthetic_pointer_driver.h"
 #include "content/common/content_export.h"
 #include "content/common/input/synthetic_web_input_event_builders.h"
 
 namespace content {
 
 class CONTENT_EXPORT SyntheticMouseDriver : public SyntheticPointerDriver {
  public:
   SyntheticMouseDriver();
+  explicit SyntheticMouseDriver(
+      SyntheticGestureParams::GestureSourceType gesture_source_type);
   ~SyntheticMouseDriver() override;
 
   void DispatchEvent(SyntheticGestureTarget* target,
                      const base::TimeTicks& timestamp) override;
 
   void Press(float x,
              float y,
              int index = 0,
              SyntheticPointerActionParams::Button button =
                  SyntheticPointerActionParams::Button::LEFT) override;
   void Move(float x, float y, int index = 0) override;
   void Release(int index = 0,
                SyntheticPointerActionParams::Button button =
                    SyntheticPointerActionParams::Button::LEFT) override;
 
   bool UserInputCheck(
       const SyntheticPointerActionParams& params) const override;
 
  private:
   blink::WebMouseEvent mouse_event_;
   unsigned last_modifiers_;
+  blink::WebPointerProperties::PointerType pointer_type_;

[tdresser, 2017/01/25 15:22:46]

WebMouseEvent is a WebPointerProperties, which already has a pointer type.

Why do we need this field?

[lanwei, 2017/01/26 02:55:40]

Acknowledged.

 
   DISALLOW_COPY_AND_ASSIGN(SyntheticMouseDriver);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_MOUSE_DRIVER_H_