Validate input from devtools channel to ensure that position is valid.

content/browser/devtools/protocol/input_handler.h

 // Copyright 2014 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_DEVTOOLS_PROTOCOL_INPUT_HANDLER_H_
 #define CONTENT_BROWSER_DEVTOOLS_PROTOCOL_INPUT_HANDLER_H_
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "content/browser/devtools/protocol/devtools_domain_handler.h"
@@ skipping 111 matching lines @@
   void OnScrollFinished(
       SyntheticSmoothScrollGestureParams gesture_params,
       int repeat_count,
       base::TimeDelta repeat_delay,
       std::string interaction_marker_name,
       int id,
       std::unique_ptr<SynthesizeScrollGestureCallback> callback,
       SyntheticGesture::Result result);
 
   void ClearPendingKeyAndMouseCallbacks();
+  bool PointIsWithinContents(gfx::PointF) const;

[dgozman, 2017/05/09 21:38:55]

IIRC, chromium mandates parameter names.

[dtapuska, 2017/05/10 14:05:03]

Done.

 
   RenderFrameHostImpl* host_;
   // Callbacks for calls to Input.dispatchKey/MouseEvent that have been sent to
   // the renderer, but that we haven't yet received an ack for.
   bool input_queued_;
   std::deque<std::unique_ptr<DispatchKeyEventCallback>> pending_key_callbacks_;
   std::deque<std::unique_ptr<DispatchMouseEventCallback>>
       pending_mouse_callbacks_;
   float page_scale_factor_;
   gfx::SizeF scrollable_viewport_size_;
   int last_id_;
   base::WeakPtrFactory<InputHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(InputHandler);
 };
 
 }  // namespace protocol
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_PROTOCOL_INPUT_HANDLER_H_