sample app: fix break in pdf viewer (podofo was replaced by native parser)

gyp/SampleApp.gyp

 {
   'variables': {
     #manaully set sample_pdf_file_viewer to 1 to have the PdfViewer in SampleApp
     'sample_pdf_file_viewer%': 0,
   },
   'targets': [
     {
       'target_name': 'SampleApp',
       'type': 'executable',
       'mac_bundle' : 1,
@@ skipping 147 matching lines @@
       ],
      'conditions' : [
        [ 'sample_pdf_file_viewer == 1', {
          'defines': [
            'SAMPLE_PDF_FILE_VIEWER',
          ],
          'dependencies': [
            'pdfviewer.gyp:libpdfviewer',
          ],
          'include_dirs' : [
-           '../experimental/PdfViewer/pdfparser/podofo',
+           '../experimental/PdfViewer/',
          ],
          'sources': [
            '../samplecode/SamplePdfFileViewer.cpp',
          ]
        }],      
        [ 'skia_os in ["linux", "freebsd", "openbsd", "solaris", "chromeos"]', {
          'sources!': [
             '../samplecode/SampleDecode.cpp',
          ],
         }],
@@ skipping 147 matching lines @@
       },
     },
   ],
 }
 
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