Expose public interface for composited selection bounds

Source/web/WebViewImpl.h

Index: Source/web/WebViewImpl.h
diff --git a/Source/web/WebViewImpl.h b/Source/web/WebViewImpl.h
index e47d5f8205bf70077164e6fc134402c93603a928..72b58178b99481dd1e3f73f5898d0e0836c8d52f 100644
--- a/Source/web/WebViewImpl.h
+++ b/Source/web/WebViewImpl.h
@@ -79,6 +79,8 @@ class WebPlugin;
 class WebSettingsImpl;
 class FullscreenController;
 
+struct WebSelectionBound;
+
 class WebViewImpl FINAL : public WebView
     , public RefCounted<WebViewImpl>
     , public WebGestureCurveTarget
@@ -446,6 +448,9 @@ public:
     void enterFullScreenForElement(WebCore::Element*);
     void exitFullScreenForElement(WebCore::Element*);
 
+    void clearCompositedSelectionBounds();
+    void updateCompositedSelectionBounds(const WebSelectionBound& anchor, const WebSelectionBound& focus);
+
     // Exposed for the purpose of overriding device metrics.
     void sendResizeEventAndRepaint();