Style Change: NULL->nullptr

src/pdf/SkPDFCanon.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkPDFCanon_DEFINED
 #define SkPDFCanon_DEFINED
 
 #include "SkPDFGraphicState.h"
@@ skipping 22 matching lines @@
  *  The findFoo() methods do not change the ref count of the Foo
  *  objects.
  */
 class SkPDFCanon : SkNoncopyable {
 public:
     ~SkPDFCanon() { this->reset(); }
 
     // reset to original setting, unrefs all objects.
     void reset();
 
-    // Returns exact match if there is one.  If not, it returns NULL.
+    // Returns exact match if there is one.  If not, it returns nullptr.
     // If there is no exact match, but there is a related font, we
-    // still return NULL, but also set *relatedFont.
+    // still return nullptr, but also set *relatedFont.
     SkPDFFont* findFont(uint32_t fontID,
                         uint16_t glyphID,
                         SkPDFFont** relatedFont) const;
     void addFont(SkPDFFont* font, uint32_t fontID, uint16_t fGlyphID);
 
     SkPDFFunctionShader* findFunctionShader(const SkPDFShader::State&) const;
     void addFunctionShader(SkPDFFunctionShader*);
 
     SkPDFAlphaFunctionShader* findAlphaShader(const SkPDFShader::State&) const;
     void addAlphaShader(SkPDFAlphaFunctionShader*);
@@ skipping 15 matching lines @@
     };
     SkTDArray<FontRec> fFontRecords;
 
     SkTDArray<SkPDFFunctionShader*> fFunctionShaderRecords;
 
     SkTDArray<SkPDFAlphaFunctionShader*> fAlphaShaderRecords;
 
     SkTDArray<SkPDFImageShader*> fImageShaderRecords;
 
     struct WrapGS {
-        explicit WrapGS(const SkPDFGraphicState* ptr = NULL) : fPtr(ptr) {}
+        explicit WrapGS(const SkPDFGraphicState* ptr = nullptr) : fPtr(ptr) {}
         const SkPDFGraphicState* fPtr;
         bool operator==(const WrapGS& rhs) const {
             SkASSERT(fPtr);
             SkASSERT(rhs.fPtr);
             return *fPtr == *rhs.fPtr;
         }
         static uint32_t Hash(const WrapGS& w) {
             SkASSERT(w.fPtr);
             return w.fPtr->hash();
         }
     };
     SkTHashSet<WrapGS, WrapGS::Hash> fGraphicStateRecords;
 
     SkTDArray<SkPDFBitmap*> fBitmapRecords;
 };
 #endif  // SkPDFCanon_DEFINED