pdfviewer: code cleanup - remove STL usage

experimental/PdfViewer/SkPdfUtils.h

Index: experimental/PdfViewer/SkPdfUtils.h
===================================================================
--- experimental/PdfViewer/SkPdfUtils.h	(revision 10721)
+++ experimental/PdfViewer/SkPdfUtils.h	(working copy)
@@ -4,6 +4,7 @@
 #include "SkMatrix.h"
 #include "SkRect.h"
 #include "SkPdfConfig.h"
+#include "SkString.h"
 
 class SkPdfArray;
 class SkPdfContext;
@@ -42,6 +43,10 @@
     }
 };
 
+// TODO(edisonn): hack to make code generation simpler. Alternatively we can update the
+// generate_code.py not to rely on != operator
+bool operator !=(const SkString& first, const char* second);
+
 SkMatrix SkMatrixFromPdfArray(SkPdfArray* pdfArray);
 
 SkPdfResult doType3Char(SkPdfContext* pdfContext, SkCanvas* canvas, const SkPdfNativeObject* skobj, SkRect bBox, SkMatrix matrix, double textSize);