"NULL !=" = NULL

include/core/SkCanvas.h

 /*
  * 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.
  */
 
 #ifndef SkCanvas_DEFINED
 #define SkCanvas_DEFINED
 
@@ skipping 1424 matching lines @@
     int         fSaveCount;
 };
 #define SkAutoCanvasRestore(...) SK_REQUIRE_LOCAL_VAR(SkAutoCanvasRestore)
 
 /** Stack helper class to automatically open and close a comment block
  */
 class SkAutoCommentBlock : SkNoncopyable {
 public:
     SkAutoCommentBlock(SkCanvas* canvas, const char* description) {
         fCanvas = canvas;
-        if (NULL != fCanvas) {
+        if (fCanvas) {
             fCanvas->beginCommentGroup(description);
         }
     }
 
     ~SkAutoCommentBlock() {
-        if (NULL != fCanvas) {
+        if (fCanvas) {
             fCanvas->endCommentGroup();
         }
     }
 
 private:
     SkCanvas* fCanvas;
 };
 #define SkAutoCommentBlock(...) SK_REQUIRE_LOCAL_VAR(SkAutoCommentBlock)
 
 /**
@@ skipping 52 matching lines @@
 
 class SkCanvasClipVisitor {
 public:
     virtual ~SkCanvasClipVisitor();
     virtual void clipRect(const SkRect&, SkRegion::Op, bool antialias) = 0;
     virtual void clipRRect(const SkRRect&, SkRegion::Op, bool antialias) = 0;
     virtual void clipPath(const SkPath&, SkRegion::Op, bool antialias) = 0;
 };
 
 #endif