Style Change: NULL->nullptr

tools/render_pdfs_main.cpp

Index: tools/render_pdfs_main.cpp
diff --git a/tools/render_pdfs_main.cpp b/tools/render_pdfs_main.cpp
index 9b80ef4d500565d12bfc7d0a439c562daebb0e8f..b182d8b408a25752b1fd5e38dd78ee165ac92040 100644
--- a/tools/render_pdfs_main.cpp
+++ b/tools/render_pdfs_main.cpp
@@ -120,13 +120,13 @@ static SkWStream* open_stream(const SkString& outputDir,
 
     SkString outputPath;
     if (!make_output_filepath(&outputPath, outputDir, inputFilename)) {
-        return NULL;
+        return nullptr;
     }
 
     SkAutoTDelete<SkFILEWStream> stream(new SkFILEWStream(outputPath.c_str()));
     if (!stream.get() ||  !stream->isValid()) {
         SkDebugf("Could not write to file %s\n", outputPath.c_str());
-        return NULL;
+        return nullptr;
     }
 
     return stream.detach();
@@ -222,7 +222,7 @@ int tool_main_core(int argc, char** argv) {
 
         SkAutoTUnref<SkPicture> picture(
                 SkPicture::CreateFromStream(&inputStream));
-        if (NULL == picture.get()) {
+        if (nullptr == picture.get()) {
             SkDebugf("Could not read an SkPicture from %s\n",
                      files[i].c_str());
             ++failures;