XFA: merge patch from CL 792953005, fix most VC++ warnings

fpdfsdk/include/fsdk_mgr.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef _FPDFSDK_MGR_H
 #define _FPDFSDK_MGR_H
 
 #include "fsdk_common.h"
@@ skipping 458 matching lines @@
         void FFI_GetPageViewRect(FPDF_PAGE page, FS_RECTF& dstRect)
         {
                 if (m_pInfo && m_pInfo->FFI_GetPageViewRect)
                 {
                         double left; 
                         double top;
                         double right;
                         double bottom;
                         m_pInfo->FFI_GetPageViewRect(m_pInfo, page, &left, &top, &right, &bottom);
 
-                        dstRect.left = left;
-                        dstRect.top = top < bottom? bottom:top;
-                        dstRect.bottom = top < bottom? top:bottom;
-                        dstRect.right = right;
+                        dstRect.left = static_cast<float>(left);
+                        dstRect.top = static_cast<float>(top < bottom ? bottom : top);
+                        dstRect.bottom = static_cast<float>(top < bottom ? top : bottom);
+                        dstRect.right = static_cast<float>(right);
                 }
         }
 
 
         FX_BOOL  FFI_PopupMenu(FPDF_PAGE page, FPDF_WIDGET hWidget, int menuFlag, CFX_PointF ptPopup, const CFX_PointF* pRectExclude)
         {
                 if (m_pInfo && m_pInfo->FFI_PopupMenu)
                 {
                         return m_pInfo->FFI_PopupMenu(m_pInfo, page, hWidget, menuFlag, ptPopup.x, ptPopup.y);
                 }
@@ skipping 461 matching lines @@
                 }
                 
                 if (nStartPos < m) QuickSort(nStartPos, m, bAscend, pCompare);
                 if (nStopPos > m) QuickSort(m, nStopPos, bAscend, pCompare);
         }
 };
 
 
 #endif //_FPDFSDK_MGR_H