Get rid of most instance of 'foo != NULL'

core/src/fxge/win32/fx_win32_print.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 "core/include/fxge/fx_ge.h"
 
 #if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
 
@@ skipping 31 matching lines @@
                                      int alpha_flag,
                                      void* pIccTransform) {
   if (pSource->IsAlphaMask()) {
     FX_RECT clip_rect(left, top, left + pSrcRect->Width(),
                       top + pSrcRect->Height());
     return StretchDIBits(pSource, color, left - pSrcRect->left,
                          top - pSrcRect->top, pSource->GetWidth(),
                          pSource->GetHeight(), &clip_rect, 0, alpha_flag,
                          pIccTransform, FXDIB_BLEND_NORMAL);
   }
-  ASSERT(pSource != NULL && !pSource->IsAlphaMask() && pSrcRect != NULL);
+  ASSERT(pSource && !pSource->IsAlphaMask() && pSrcRect);
   ASSERT(blend_type == FXDIB_BLEND_NORMAL);
   if (pSource->HasAlpha()) {
     return FALSE;
   }
   CFX_DIBExtractor temp(pSource);
   CFX_DIBitmap* pBitmap = temp;
   if (pBitmap == NULL) {
     return FALSE;
   }
   return GDI_SetDIBits(pBitmap, pSrcRect, left, top, pIccTransform);
@@ skipping 402 matching lines @@
                                          CFX_FontCache* pCache,
                                          const CFX_Matrix* pObject2Device,
                                          FX_FLOAT font_size,
                                          FX_DWORD color,
                                          int alpha_flag,
                                          void* pIccTransform) {
   return m_PSRenderer.DrawText(nChars, pCharPos, pFont, pCache, pObject2Device,
                                font_size, color, alpha_flag, pIccTransform);
 }
 #endif