Prepare SyntheticPointerAction to handle touch actions for multiple fingers

content/renderer/render_widget.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_RENDERER_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 290 matching lines @@
 
   // Callback for use with synthetic gestures (e.g. BeginSmoothScroll).
   typedef base::Callback<void()> SyntheticGestureCompletionCallback;
 
   // Send a synthetic gesture to the browser to be queued to the synthetic
   // gesture controller.
   void QueueSyntheticGesture(
       std::unique_ptr<SyntheticGestureParams> gesture_params,
       const SyntheticGestureCompletionCallback& callback);
 
+  void QueueSyntheticGesture(
+      std::unique_ptr<SyntheticGestureParams> gesture_params);
+
   // Deliveres |message| together with compositor state change updates. The
   // exact behavior depends on |policy|.
   // This mechanism is not a drop-in replacement for IPC: messages sent this way
   // will not be automatically available to BrowserMessageFilter, for example.
   // FIFO ordering is preserved between messages enqueued with the same
   // |policy|, the ordering between messages enqueued for different policies is
   // undefined.
   //
   // |msg| message to send, ownership of |msg| is transferred.
   // |policy| see the comment on MessageDeliveryPolicy.
@@ skipping 436 matching lines @@
  private:
   // When emulated, this returns original device scale factor.
   float GetOriginalDeviceScaleFactor() const;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_