Convert drag event position to root frame.

third_party/WebKit/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 213 matching lines @@
 
   void enableAutoResizeMode(const WebSize& minSize,
                             const WebSize& maxSize) override;
   void disableAutoResizeMode() override;
   void performMediaPlayerAction(const WebMediaPlayerAction& action,
                                 const WebPoint& location) override;
   void performPluginAction(const WebPluginAction&, const WebPoint&) override;
   WebHitTestResult hitTestResultAt(const WebPoint&) override;
   WebHitTestResult hitTestResultForTap(const WebPoint&,
                                        const WebSize&) override;
-  void dragSourceEndedAt(const WebPoint& clientPoint,
+  void dragSourceEndedAt(const WebPoint& pointInViewport,
                          const WebPoint& screenPoint,
                          WebDragOperation) override;
   void dragSourceSystemDragEnded() override;
   WebDragOperation dragTargetDragEnter(const WebDragData&,
-                                       const WebPoint& clientPoint,
+                                       const WebPoint& pointInViewport,
                                        const WebPoint& screenPoint,
                                        WebDragOperationsMask operationsAllowed,
                                        int modifiers) override;
-  WebDragOperation dragTargetDragOver(const WebPoint& clientPoint,
+  WebDragOperation dragTargetDragOver(const WebPoint& pointInViewport,
                                       const WebPoint& screenPoint,
                                       WebDragOperationsMask operationsAllowed,
                                       int modifiers) override;
   void dragTargetDragLeave() override;
   void dragTargetDrop(const WebDragData&,
-                      const WebPoint& clientPoint,
+                      const WebPoint& pointInViewport,
                       const WebPoint& screenPoint,
                       int modifiers) override;
   void spellingMarkers(WebVector<uint32_t>* markers) override;
   void removeSpellingMarkersUnderWords(
       const WebVector<WebString>& words) override;
   unsigned long createUniqueIdentifierForRequest() override;
   void enableDeviceEmulation(const WebDeviceEmulationParams&) override;
   void disableDeviceEmulation() override;
   WebAXObject accessibilityObject() override;
   void setSelectionColors(unsigned activeBackgroundColor,
@@ skipping 305 matching lines @@
   bool scrollViewWithKeyboard(int keyCode, int modifiers);
 
   void hideSelectPopup();
 
   HitTestResult hitTestResultForRootFramePos(const IntPoint&);
   HitTestResult hitTestResultForViewportPos(const IntPoint&);
 
   // 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& clientPoint,
+  WebDragOperation dragTargetDragEnterOrOver(const WebPoint& pointInViewport,
                                              const WebPoint& screenPoint,
                                              DragAction,
                                              int modifiers);
 
   void configureAutoResizeMode();
 
   void initializeLayerTreeView();
 
   void setIsAcceleratedCompositingActive(bool);
   void doComposite();
@@ skipping 191 matching lines @@
   Persistent<ResizeViewportAnchor> m_resizeViewportAnchor;
 };
 
 // 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