Add type cast definitions for CPDF_Number.

core/src/fpdfdoc/doc_formfield.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 "../../include/fpdfdoc/fpdf_doc.h"
 #include "doc_utils.h"
 
 FX_BOOL PDF_FormField_IsUnison(CPDF_FormField* pField) {
@@ skipping 413 matching lines @@
     if (pValue == NULL) {
       return 0;
     }
   }
   if (pValue->GetType() == PDFOBJ_STRING) {
     if (pValue->GetString().IsEmpty()) {
       return 0;
     }
     return 1;
   }
-  if (pValue->GetType() == PDFOBJ_NUMBER) {
+  if (pValue->IsNumber()) {
     if (pValue->GetString().IsEmpty()) {
       return 0;
     }
     return 1;
   }
   if (pValue->GetType() != PDFOBJ_ARRAY) {
     return 0;
   }
   return ((CPDF_Array*)pValue)->GetCount();
 }
 int CPDF_FormField::GetSelectedIndex(int index) {
   CPDF_Object* pValue = FPDF_GetFieldAttr(m_pDict, "V");
   if (pValue == NULL) {
     pValue = FPDF_GetFieldAttr(m_pDict, "I");
     if (pValue == NULL) {
       return -1;
     }
   }
-  if (pValue->GetType() == PDFOBJ_NUMBER) {
+  if (pValue->IsNumber())
     return pValue->GetInteger();
-  }
+
   CFX_WideString sel_value;
   if (pValue->GetType() == PDFOBJ_STRING) {
     if (index != 0) {
       return -1;
     }
     sel_value = pValue->GetUnicodeText();
   } else {
     if (pValue->GetType() != PDFOBJ_ARRAY) {
       return -1;
     }
@@ skipping 68 matching lines @@
     if (pValue == NULL) {
       return FALSE;
     }
   }
   if (pValue->GetType() == PDFOBJ_STRING) {
     if (pValue->GetUnicodeText() == opt_value) {
       return TRUE;
     }
     return FALSE;
   }
-  if (pValue->GetType() == PDFOBJ_NUMBER) {
+  if (pValue->IsNumber()) {
     if (pValue->GetString().IsEmpty()) {
       return FALSE;
     }
     if (pValue->GetInteger() == index) {
       return TRUE;
     }
     return FALSE;
   }
   if (pValue->GetType() != PDFOBJ_ARRAY) {
     return FALSE;
@@ skipping 510 matching lines @@
       m_pForm->m_pFormDict->GetDict("DR")->GetDict("Font"))
     pFontDict = m_pForm->m_pFormDict->GetDict("DR")->GetDict("Font")->GetDict(
         font_name);
 
   if (pFontDict == NULL) {
     return;
   }
   m_pFont = m_pForm->m_pDocument->LoadFont(pFontDict);
   m_FontSize = FX_atof(syntax.GetWord());
 }