Add iterators and unit tests for CPDF_Array class

pdfium.gyp

 # Copyright 2015 PDFium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     # TODO(thakis): Enable this, pdfium:29
     #'chromium_code': 1,
 
     'variables': {
@@ skipping 901 matching lines @@
         '<(DEPTH)/testing/gtest.gyp:gtest',
         'pdfium',
         'test_support',
       ],
       'sources': [
         'core/fxcrt/cfx_retain_ptr_unittest.cpp',
         'core/fpdfapi/fpdf_font/fpdf_font_cid_unittest.cpp',
         'core/fpdfapi/fpdf_font/fpdf_font_unittest.cpp',
         'core/fpdfapi/fpdf_page/fpdf_page_parser_unittest.cpp',
         'core/fpdfapi/fpdf_page/fpdf_page_parser_old_unittest.cpp',
+        'core/fpdfapi/fpdf_parser/cpdf_array_unittest.cpp',
         'core/fpdfapi/fpdf_parser/cpdf_object_unittest.cpp',
         'core/fpdfapi/fpdf_parser/cpdf_parser_unittest.cpp',
         'core/fpdfapi/fpdf_parser/cpdf_simple_parser_unittest.cpp',
         'core/fpdfapi/fpdf_parser/cpdf_syntax_parser_unittest.cpp',
         'core/fpdfapi/fpdf_parser/fpdf_parser_decode_unittest.cpp',
         'core/fpdfdoc/doc_basic_unittest.cpp',
         'core/fpdftext/fpdf_text_int_unittest.cpp',
         'core/fxcodec/codec/fx_codec_jpx_unittest.cpp',
         'core/fxcrt/fx_basic_bstring_unittest.cpp',
         'core/fxcrt/fx_basic_gcc_unittest.cpp',
@@ skipping 126 matching lines @@
             'fpdfsdk/fpdfxfa/include/fpdfxfa_app.h',
             'fpdfsdk/fpdfxfa/include/fpdfxfa_doc.h',
             'fpdfsdk/fpdfxfa/include/fpdfxfa_page.h',
             'fpdfsdk/fpdfxfa/include/fpdfxfa_util.h',
           ],
         },
       ]
     }],
   ]
 }