"NULL !=" = NULL

src/images/SkImageDecoder_libgif.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkColor.h"
 #include "SkColorPriv.h"
 #include "SkColorTable.h"
@@ skipping 176 matching lines @@
 
 /**
  *  GIFs with fewer then 256 color entries will sometimes index out of
  *  bounds of the color table (this is malformed, but libgif does not
  *  check sicne it is rare).  This function checks for this error and
  *  fixes it.  This makes the output image consistantly deterministic.
  */
 static void sanitize_indexed_bitmap(SkBitmap* bm) {
     if ((kIndex_8_SkColorType == bm->colorType()) && !(bm->empty())) {
         SkAutoLockPixels alp(*bm);
-        if (NULL != bm->getPixels()) {
+        if (bm->getPixels()) {
             SkColorTable* ct = bm->getColorTable();  // Index8 must have it.
             SkASSERT(ct != NULL);
             uint32_t count = ct->count();
             SkASSERT(count > 0);
             SkASSERT(count <= 0x100);
             if (count != 0x100) {  // Full colortables can't go wrong.
                 // Count is a power of 2; asserted elsewhere.
                 uint8_t byteMask = (~(count - 1));
                 bool warning = false;
                 uint8_t* addr = static_cast<uint8_t*>(bm->getPixels());
@@ skipping 323 matching lines @@
 static SkImageDecoder_DecodeReg gReg(sk_libgif_dfactory);
 
 static SkImageDecoder::Format get_format_gif(SkStreamRewindable* stream) {
     if (is_gif(stream)) {
         return SkImageDecoder::kGIF_Format;
     }
     return SkImageDecoder::kUnknown_Format;
 }
 
 static SkImageDecoder_FormatReg gFormatReg(get_format_gif);