Unify the code paths for handling mouse events when pointer is locked on

third_party/WebKit/Source/web/WebFrameWidgetBase.h

 // Copyright 2016 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 WebFrameWidgetBase_h
 #define WebFrameWidgetBase_h
 
 #include "core/clipboard/DataObject.h"
-
+#include "platform/UserGestureIndicator.h"
 #include "public/platform/WebDragData.h"
 #include "public/web/WebFrameWidget.h"
 #include "wtf/Assertions.h"
 
 namespace blink {
 
 class AnimationWorkletProxyClient;
 class CompositorAnimationHost;
 class CompositorWorkerProxyClient;
 class GraphicsLayer;
@@ skipping 49 matching lines @@
   void startDragging(WebReferrerPolicy,
                      const WebDragData&,
                      WebDragOperationsMask,
                      const WebImage& dragImage,
                      const WebPoint& dragImageOffset);
 
   bool doingDragAndDrop() { return m_doingDragAndDrop; }
   static void setIgnoreInputEvents(bool value) { s_ignoreInputEvents = value; }
   static bool ignoreInputEvents() { return s_ignoreInputEvents; }
 
+  // WebWidget methods.
+  void didAcquirePointerLock() override;
+  void didNotAcquirePointerLock() override;
+  void didLosePointerLock() override;
+
  protected:
   enum DragAction { DragEnter, DragOver };
 
   // Consolidate some common code between starting a drag over a target and
   // updating a drag over a target. If we're starting a drag, |isEntering|
   // should be true.
   WebDragOperation dragTargetDragEnterOrOver(const WebPoint& pointInViewport,
                                              const WebPoint& screenPoint,
                                              DragAction,
                                              int modifiers);
@@ skipping 13 matching lines @@
   bool m_doingDragAndDrop = false;
 
   // The available drag operations (copy, move link...) allowed by the source.
   WebDragOperation m_operationsAllowed = WebDragOperationNone;
 
   // The current drag operation as negotiated by the source and destination.
   // When not equal to DragOperationNone, the drag data can be dropped onto the
   // current drop target in this WebView (the drop target can accept the drop).
   WebDragOperation m_dragOperation = WebDragOperationNone;
 
+  // Helper function to process events while pointer locked.
+  void pointerLockMouseEvent(const WebInputEvent&);
+
  private:
   void cancelDrag();
 
   static bool s_ignoreInputEvents;
+  RefPtr<UserGestureToken> m_pointerLockGestureToken;
+
+  friend class WebViewImpl;
 };
 
 DEFINE_TYPE_CASTS(WebFrameWidgetBase, WebFrameWidget, widget, true, true);
 
 }  // namespace blink
 
 #endif