Prepare SyntheticPointerAction to handle mouse actions

content/browser/renderer_host/input/synthetic_mouse_pointer.cc

 // 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.
 
 #include "content/browser/renderer_host/input/synthetic_mouse_pointer.h"
 
 #include "content/browser/renderer_host/input/synthetic_gesture_target.h"
 
 namespace content {
 
@@ skipping 15 matching lines @@
       blink::WebInputEvent::MouseDown, x, y, 0);
   mouse_event_.clickCount = 1;
   return 0;
 }
 
 void SyntheticMousePointer::Move(int index,
                                  float x,
                                  float y,
                                  SyntheticGestureTarget* target,
                                  const base::TimeTicks& timestamp) {
+  blink::WebMouseEvent::Button button = mouse_event_.button;
+  int click_count = mouse_event_.clickCount;
   mouse_event_ = SyntheticWebMouseEventBuilder::Build(
       blink::WebInputEvent::MouseMove, x, y, 0);
-  mouse_event_.button = blink::WebMouseEvent::ButtonLeft;
+  mouse_event_.button = button;
+  mouse_event_.clickCount = click_count;
 }
 
 void SyntheticMousePointer::Release(int index,
                                     SyntheticGestureTarget* target,
                                     const base::TimeTicks& timestamp) {
   mouse_event_ = SyntheticWebMouseEventBuilder::Build(
       blink::WebInputEvent::MouseUp, mouse_event_.x, mouse_event_.y, 0);
   mouse_event_.clickCount = 1;
 }
 
 SyntheticGestureParams::GestureSourceType SyntheticMousePointer::SourceType()
     const {
   return SyntheticGestureParams::MOUSE_INPUT;
 }
 
 }  // namespace content