pdfviewer: code cleanup - remove STL usage

experimental/PdfViewer/pdfparser/native/SkPdfNativeObject.cpp

 
 #include "SkPdfNativeObject.h"
 
 // TODO(edisonn): mac builder does not find the header ... but from headers is ok
 //#include "SkPdfStreamCommonDictionary_autogen.h"
 #include "SkPdfHeaders_autogen.h"
 
 #include "SkFlate.h"
 #include "SkStream.h"
 #include "SkPdfNativeTokenizer.h"
@@ skipping 55 matching lines @@
 
     if (isStreamFiltered()) {
         return true;
     }
 
     SkPdfStreamCommonDictionary* stream = (SkPdfStreamCommonDictionary*)this;
 
     if (!stream->has_Filter()) {
         fStr.fBytes = ((fStr.fBytes >> 1) << 1) + kFilteredStreamBit;
     } else if (stream->isFilterAName(NULL)) {
-        std::string filterName = stream->getFilterAsName(NULL);
+        SkString filterName = stream->getFilterAsName(NULL);
         applyFilter(filterName.c_str());
     } else if (stream->isFilterAArray(NULL)) {
         const SkPdfArray* filters = stream->getFilterAsArray(NULL);
         int cnt = filters->size();
         for (int i = cnt - 1; i >= 0; i--) {
             const SkPdfNativeObject* filterName = filters->objAtAIndex(i);
             if (filterName != NULL && filterName->isName()) {
                 if (!applyFilter(filterName->nameValue())) {
                     break;
                 }
@@ skipping 16 matching lines @@
                 delete (SkBitmap*)fData;
                 break;
             default:
                 SkASSERT(false);
                 break;
         }
     }
     fData = NULL;
     fDataType = kEmpty_Data;
 }