Merge to XFA: Take care fall-through cases of switch in pdfium

fpdfsdk/src/formfiller/FFL_FormFiller.cpp

 // 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
 
 #include "fpdfsdk/include/formfiller/FFL_CBA_Fontmap.h"
 #include "fpdfsdk/include/formfiller/FFL_FormFiller.h"
 
 #define GetRed(rgb) ((uint8_t)(rgb))
@@ skipping 255 matching lines @@
 
   if (CPWL_Wnd* pWnd = GetPDFWindow(pPageView, FALSE))
     pWnd->KillFocus();
 
   FX_BOOL bDestroyPDFWindow;
   switch (m_pWidget->GetFieldType()) {
     case FIELDTYPE_PUSHBUTTON:
     case FIELDTYPE_CHECKBOX:
     case FIELDTYPE_RADIOBUTTON:
       bDestroyPDFWindow = TRUE;
+      break;
     default:
       bDestroyPDFWindow = FALSE;
+      break;
   }
   EscapeFiller(pPageView, bDestroyPDFWindow);
 }
 
 FX_BOOL CFFL_FormFiller::IsValid() const {
   return m_bValid;
 }
 
 PWL_CREATEPARAM CFFL_FormFiller::GetCreateParam() {
   ASSERT(m_pApp);
@@ skipping 427 matching lines @@
     pWidget->DrawAppearance(pDevice, pUser2Device, CPDF_Annot::Normal, NULL);
 }
 
 void CFFL_Button::OnDrawDeactive(CPDFSDK_PageView* pPageView,
                                  CPDFSDK_Annot* pAnnot,
                                  CFX_RenderDevice* pDevice,
                                  CFX_Matrix* pUser2Device,
                                  FX_DWORD dwFlags) {
   OnDraw(pPageView, pAnnot, pDevice, pUser2Device, dwFlags);
 }