pdfviewer: limit the characters we support in ToUnicode, to 0xffff

experimental/PdfViewer/pdf_viewer_main.cpp

 #include "SkCanvas.h"
 #include "SkCommandLineFlags.h"
 #include "SkDevice.h"
 #include "SkGraphics.h"
 #include "SkImageDecoder.h"
 #include "SkImageEncoder.h"
 #include "SkOSFile.h"
 #include "SkPicture.h"
 #include "SkStream.h"
 #include "SkTypeface.h"
@@ skipping 228 matching lines @@
             }
         }
     }
 
     if (success) {
         if (!renderer.pages())
         {
             SkDebugf("ERROR: Empty PDF Document %s\n", inputPath.c_str());
             return false;
         } else {
-            printf("renders = %i\n", FLAGS_benchRender);
             for (int i = 0; i < FLAGS_benchRender + 1; i++) {
                 // TODO(edisonn) if (i == 1) start timer
                 if (strcmp(FLAGS_pages[0], "all") == 0) {
                     for (int pn = 0; pn < renderer.pages(); ++pn) {
                         success = render_page(outputDir, inputFilename, renderer, FLAGS_noExtensionForOnePagePdf && renderer.pages() == 1 ? -1 : pn) && success;
                     }
                 } else if (strcmp(FLAGS_pages[0], "reverse") == 0) {
                     for (int pn = renderer.pages() - 1; pn >= 0; --pn) {
                         success = render_page(outputDir, inputFilename, renderer, FLAGS_noExtensionForOnePagePdf && renderer.pages() == 1 ? -1 : pn) && success;
                     }
@@ skipping 73 matching lines @@
     }
 
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif