Remove checks in fxge/{apple,win32,skia,dib} now that FX_NEW cant return 0

core/src/fxge/dib/fx_dib_convert.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/fxge/fx_dib.h"
 #include "../../../include/fxge/fx_ge.h"
 #include "../../../include/fxcodec/fx_codec.h"
 const FX_DWORD g_dwWinPalette[256] = {
@@ skipping 924 matching lines @@
         CFX_DIBitmap* pClone = Clone(pClip);
         if (pClone == NULL) {
             return NULL;
         }
         if(!pClone->ConvertFormat(dest_format, pIccTransform)) {
             delete pClone;
             return NULL;
         }
         return pClone;
     }
-    CFX_DIBitmap* pClone = FX_NEW CFX_DIBitmap;
-    if (!pClone) {
-        return NULL;
-    }
+    CFX_DIBitmap* pClone = new CFX_DIBitmap;
     if(!pClone->Create(m_Width, m_Height, dest_format)) {
         delete pClone;
         return NULL;
     }
     FX_BOOL ret = TRUE;
     CFX_DIBitmap* pSrcAlpha = NULL;
     if (m_AlphaFlag & 2) {
         pSrcAlpha = (GetFormat() == FXDIB_Argb) ? GetAlphaMask() : m_pAlphaMask;
         if (pSrcAlpha == NULL) {
             delete pClone;
@@ skipping 119 matching lines @@
     if (!m_bExtBuf) {
         FX_Free(m_pBuffer);
     }
     m_bExtBuf = FALSE;
     m_pBuffer = dest_buf;
     m_bpp = (FX_BYTE)dest_format;
     m_AlphaFlag = (FX_BYTE)(dest_format >> 8);
     m_Pitch = dest_pitch;
     return TRUE;
 }