[PointerLock] Move "silent mouse lock" logic from renderer to RWHI

content/renderer/mouse_lock_dispatcher.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_MOUSE_LOCK_DISPATCHER_H_
 #define CONTENT_RENDERER_MOUSE_LOCK_DISPATCHER_H_
 
 #include "base/macros.h"
 #include "content/common/content_export.h"
 
@@ skipping 35 matching lines @@
   bool WillHandleMouseEvent(const blink::WebMouseEvent& event);
 
   // Subclasses or users have to call these methods to report mouse lock events
   // from the browser.
   void OnLockMouseACK(bool succeeded);
   void OnMouseLockLost();
 
  protected:
   // Subclasses must implement these methods to send mouse lock requests to the
   // browser.
-  virtual void SendLockMouseRequest(bool unlocked_by_target) = 0;
+  virtual void SendLockMouseRequest() = 0;
   virtual void SendUnlockMouseRequest() = 0;
 
  private:
   bool MouseLockedOrPendingAction() const {
     return mouse_locked_ || pending_lock_request_ || pending_unlock_request_;
   }
 
   bool mouse_locked_;
   // If both |pending_lock_request_| and |pending_unlock_request_| are true,
   // it means a lock request was sent before an unlock request and we haven't
   // received responses for them. The logic in LockMouse() makes sure that a
   // lock request won't be sent when there is a pending unlock request.
   bool pending_lock_request_;
   bool pending_unlock_request_;
 
-  // Used when locking to indicate when a target application has voluntarily
-  // unlocked and desires to relock the mouse. If the mouse is unlocked due
-  // to ESC being pressed by the user, this will be false
-  bool unlocked_by_target_;
-
   // |target_| is the pending or current owner of mouse lock. We retain a non
   // owning reference here that must be cleared by |OnLockTargetDestroyed|
   // when it is destroyed.
   LockTarget* target_;
 
   DISALLOW_COPY_AND_ASSIGN(MouseLockDispatcher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MOUSE_LOCK_DISPATCHER_H_