Make StringData a templated 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 592 matching lines @@
           # core/fxcodec/fx_libopenjpeg/src/fx_mct.c does an pointer-to-int
           # conversion to check that an address is 16-bit aligned (benign).
           'cflags_c': [ '-Wno-pointer-to-int-cast' ],
         }],
       ],
     },
     {
       'target_name': 'fxcrt',
       'type': 'static_library',
       'sources': [
+        'core/fxcrt/cfx_string_data_template.h',
         'core/fxcrt/extension.h',
         'core/fxcrt/fx_basic_array.cpp',
         'core/fxcrt/fx_basic_bstring.cpp',
         'core/fxcrt/fx_basic_buffer.cpp',
         'core/fxcrt/fx_basic_coords.cpp',
         'core/fxcrt/fx_basic_gcc.cpp',
         'core/fxcrt/fx_basic_list.cpp',
         'core/fxcrt/fx_basic_memmgr.cpp',
         'core/fxcrt/fx_basic_plex.cpp',
         'core/fxcrt/fx_basic_utf.cpp',
@@ skipping 436 matching lines @@
             'fpdfsdk/include/fpdfxfa/fpdfxfa_app.h',
             'fpdfsdk/include/fpdfxfa/fpdfxfa_doc.h',
             'fpdfsdk/include/fpdfxfa/fpdfxfa_page.h',
             'fpdfsdk/include/fpdfxfa/fpdfxfa_util.h',
           ],
         },
       ]
     }],
   ]
 }