Plumb selection bounds as a single unit

Source/web/WebViewImpl.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 68 matching lines @@
 class TopControls;
 class UserGestureToken;
 class WebActiveGestureAnimation;
 class WebCompositorAnimationTimeline;
 class WebDevToolsAgentImpl;
 class WebLayerTreeView;
 class WebLocalFrameImpl;
 class WebImage;
 class WebPagePopupImpl;
 class WebPlugin;
+class WebSelection;
 class WebSettingsImpl;
 
-struct WebSelectionBound;
-
 class WebViewImpl final : public WebView
     , public RefCounted<WebViewImpl>
     , public WebGestureCurveTarget
     , public PageWidgetEventHandler {
 public:
     static WebViewImpl* create(WebViewClient*);
     static HashSet<WebViewImpl*>& allInstances();
 
     // WebWidget methods:
     virtual void close() override;
@@ skipping 375 matching lines @@
 
     void enableFakePageScaleAnimationForTesting(bool);
     bool fakeDoubleTapAnimationPendingForTesting() const { return m_doubleTapZoomPending; }
     IntPoint fakePageScaleAnimationTargetPositionForTesting() const { return m_fakePageScaleAnimationTargetPosition; }
     float fakePageScaleAnimationPageScaleForTesting() const { return m_fakePageScaleAnimationPageScaleFactor; }
     bool fakePageScaleAnimationUseAnchorForTesting() const { return m_fakePageScaleAnimationUseAnchor; }
 
     void enterFullScreenForElement(Element*);
     void exitFullScreenForElement(Element*);
 
-    void clearCompositedSelectionBounds();
-    void updateCompositedSelectionBounds(const WebSelectionBound& anchor, const WebSelectionBound& focus);
+    void clearCompositedSelection();
+    void updateCompositedSelection(const WebSelection&);
 
     // Exposed for the purpose of overriding device metrics.
     void sendResizeEventAndRepaint();
 
     // Exposed for testing purposes.
     bool hasHorizontalScrollbar();
     bool hasVerticalScrollbar();
 
     // Pointer Lock calls allow a page to capture all mouse events and
     // disable the system cursor.
@@ skipping 274 matching lines @@
 };
 
 DEFINE_TYPE_CASTS(WebViewImpl, WebWidget, widget, widget->isWebView(), widget.isWebView());
 // We have no ways to check if the specified WebView is an instance of
 // WebViewImpl because WebViewImpl is the only implementation of WebView.
 DEFINE_TYPE_CASTS(WebViewImpl, WebView, webView, true, true);
 
 } // namespace blink
 
 #endif