Remove FX_Alloc() null checks now that it can't return NULL.

fpdfsdk/src/fsdk_baseform.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 "../../third_party/base/nonstd_unique_ptr.h"
 #include "../include/fsdk_define.h"
 #include "../include/fsdk_mgr.h"
 #include "../include/fsdk_baseannot.h"
@@ skipping 2334 matching lines @@
                         CFX_ByteString csValue_b = CFX_ByteString::FromUnicode(csWValue);
 
                         fdfEncodedData = fdfEncodedData<<name_b.GetBuffer(name_b.GetLength());
                         name_b.ReleaseBuffer();
                         fdfEncodedData = fdfEncodedData<<"=";
                         fdfEncodedData = fdfEncodedData<<csValue_b.GetBuffer(csValue_b.GetLength());
                         csValue_b.ReleaseBuffer();
                         if(i != pFields->GetCount()-1)
                                 fdfEncodedData = fdfEncodedData<<"&";
                 }
-                
+
                 nBufSize = fdfEncodedData.GetLength();
                 pBuf = FX_Alloc(FX_BYTE, nBufSize);
-                if(!pBuf)
-                        return FALSE;
                 FXSYS_memcpy(pBuf, fdfEncodedData.GetBuffer(), nBufSize);
-                
         }
         return TRUE;
 }
 
 FX_BOOL CPDFSDK_InterForm::ExportFieldsToFDFTextBuf(const CFX_PtrArray& fields,FX_BOOL bIncludeOrExclude, CFX_ByteTextBuf& textBuf)
 {
         ASSERT(m_pDocument != NULL);
         ASSERT(m_pInterForm != NULL);
         
         CFDF_Document* pFDF = m_pInterForm->ExportToFDF(m_pDocument->GetPath(),(CFX_PtrArray&)fields, bIncludeOrExclude);
@@ skipping 624 matching lines @@
 
         CPDF_Annot* pPDFAnnot = pAnnot->GetPDFAnnot();
         ASSERT(pPDFAnnot != NULL);
 
         CPDF_Rect rcAnnot;
         pPDFAnnot->GetRect(rcAnnot);
 
         return rcAnnot;
 }