Cleanup: Delete sk_tools::get_basename() in favor of SkOSPath::SkBasename().

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 7790e2a4e76f9a038f7a189015e69f5e23395af9..fd078d3901643222f2c8baf3a3eb7c4562ed7daa 100644
--- a/tools/render_pdfs_main.cpp
+++ b/tools/render_pdfs_main.cpp
@@ -149,8 +149,7 @@ static SkWStream* open_stream(const SkString& outputDir,
  */
 static bool render_pdf(const SkString& inputPath, const SkString& outputDir,
                        sk_tools::PdfRenderer& renderer) {
-    SkString inputFilename;
-    sk_tools::get_basename(&inputFilename, inputPath);
+    SkString inputFilename = SkOSPath::SkBasename(inputPath.c_str());
 
     SkFILEStream inputStream;
     inputStream.setPath(inputPath.c_str());