pdfviewer: measure mem usage, command line flags library.

experimental/PdfViewer/pdfparser/native/SkNativeParsedPDF.h

 #ifndef EXPERIMENTAL_PDFVIEWER_PDFPARSER_NATIVE_SKNATIVEPARSEDPDF_H_
 #define EXPERIMENTAL_PDFVIEWER_PDFPARSER_NATIVE_SKNATIVEPARSEDPDF_H_
 
 #include "SkRect.h"
 #include "SkTDArray.h"
 
 class SkCanvas;
 
 class SkPdfAllocator;
 class SkPdfMapper;
 class SkPdfObject;
 class SkPdfReal;
 class SkPdfInteger;
 class SkPdfString;
 class SkPdfResourceDictionary;
 class SkPdfCatalogDictionary;
 class SkPdfPageObjectDictionary;
 class SkPdfPageTreeNodeDictionary;
 
-
-
 class SkPdfNativeTokenizer;
 
 class SkNativeParsedPDF {
 private:
     struct PublicObjectEntry {
         long fOffset;
         // long endOffset;  // TODO(edisonn): determine the end of the object, to be used when the doc is corrupted
         SkPdfObject* fObj;
         // TODO(edisonn): perf ... probably it does not make sense to cache the ref. test it!
         SkPdfObject* fResolvedReference;
@@ skipping 24 matching lines @@
 
     SkPdfReal* createReal(double value) const;
     SkPdfInteger* createInteger(int value) const;
     // the string does not own the char*
     SkPdfString* createString(unsigned char* sz, size_t len) const;
 
     void drawPage(int page, SkCanvas* canvas);
 
     SkPdfObject* resolveReference(const SkPdfObject* ref);
 
+    // Reports an approximation of all the memory usage.
+    size_t bytesUsed();
+
 private:
 
     unsigned char* readCrossReferenceSection(unsigned char* xrefStart, unsigned char* trailerEnd);
     long readTrailer(unsigned char* trailerStart, unsigned char* trailerEnd, bool storeCatalog);
 
     // TODO(edisonn): updates not supported right now, generation ignored
     void addCrossSectionInfo(int id, int generation, int offset, bool isFreed);
     static void reset(PublicObjectEntry* obj) {
         obj->fObj = NULL;
         obj->fResolvedReference = NULL;
@@ skipping 10 matching lines @@
     unsigned char* fFileContent;
     size_t fContentLength;
     const SkPdfObject* fRootCatalogRef;
     SkPdfCatalogDictionary* fRootCatalog;
 
     mutable SkTDArray<PublicObjectEntry> fObjects;
     SkTDArray<SkPdfPageObjectDictionary*> fPages;
 };
 
 #endif  // EXPERIMENTAL_PDFVIEWER_PDFPARSER_NATIVE_SKNATIVEPARSEDPDF_H_