[Element / Autofill] Add boundsInViewportFloat() to fix <input> popup misalignment.

third_party/WebKit/Source/platform/Widget.h

 /*
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2008 Collabora Ltd.  All rights reserved.
  * Copyright (C) 2013 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 12 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef Widget_h
 #define Widget_h
 
 #include "platform/PlatformExport.h"
 #include "platform/geometry/FloatPoint.h"
+#include "platform/geometry/FloatRect.h"
 #include "platform/geometry/IntRect.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/WebFocusType.h"
 #include "wtf/Forward.h"
 #include "wtf/RefCounted.h"
 
 namespace blink {
 
 class CullRect;
 class Event;
@@ skipping 50 matching lines @@
 
     virtual void handleEvent(Event*) { }
 
     // It is important for cross-platform code to realize that Mac has flipped coordinates. Therefore any code
     // that tries to convert the location of a rect using the point-based convertFromRootFrame will end
     // up with an inaccurate rect. Always make sure to use the rect-based convertFromRootFrame method
     // when converting window rects.
     IntRect convertToRootFrame(const IntRect&) const;
     IntRect convertFromRootFrame(const IntRect&) const;
 
+    FloatRect convertToRootFrame(const FloatRect&) const;
+
     IntPoint convertToRootFrame(const IntPoint&) const;
     IntPoint convertFromRootFrame(const IntPoint&) const;
     FloatPoint convertFromRootFrame(const FloatPoint&) const;
 
     virtual void frameRectsChanged() { }
 
     // Notifies this widget that other widgets on the page have been repositioned.
     virtual void widgetPositionsUpdated() { }
 
     virtual IntRect convertToContainingWidget(const IntRect&) const;
     virtual IntRect convertFromContainingWidget(const IntRect&) const;
+
+    virtual FloatRect convertToContainingWidget(const FloatRect&) const;
+
     virtual IntPoint convertToContainingWidget(const IntPoint&) const;
     virtual IntPoint convertFromContainingWidget(const IntPoint&) const;
 
     // Virtual methods to convert points to/from child widgets
     virtual IntPoint convertChildToSelf(const Widget*, const IntPoint&) const;
     virtual IntPoint convertSelfToChild(const Widget*, const IntPoint&) const;
 
+    virtual FloatPoint convertChildToSelf(const Widget*, const FloatPoint&) const;
+
     // Notifies this widget that it will no longer be receiving events.
     virtual void eventListenersRemoved() { }
 
     DECLARE_VIRTUAL_TRACE();
     virtual void dispose() { }
 
 private:
     RawPtrWillBeMember<Widget> m_parent;
     IntRect m_frame;
     bool m_selfVisible;
     bool m_parentVisible;
 };
 
 } // namespace blink
 
 #endif // Widget_h