SkPDF: Stop `#include PREPROCESSOR_DEFINE` pattern

gyp/pdf.gyp

 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 # This file builds the PDF backend.
 {
   'targets': [
     {
       'target_name': 'nopdf',
       'type': 'static_library',
@@ skipping 20 matching lines @@
         '../src/core', # needed to get SkGlyphCache.h and SkTextFormatParams.h
         '../src/image',
         '../src/utils', # needed to get SkBitSet.h
       ],
       'sources': [
         'pdf.gypi', # Makes the gypi appear in IDEs (but does not modify the build).
       ],
       'conditions': [
         [ 'skia_pdf_use_sfntly and not skia_android_framework and \
            skia_os in ["win", "android", "linux", "mac"]',
-          { 'dependencies': [ 'sfntly.gyp:sfntly' ] }
+          {
+            'dependencies': [ 'sfntly.gyp:sfntly' ],
+            'defines': [ 'SK_PDF_USE_SFNTLY' ],
+          }
         ],
         [ 'skia_android_framework', {
             # Add SFTNLY support for PDF (which in turns depends on ICU)
-            'include_dirs': [
-              'external/sfntly/cpp/src',
-            ],
+            'include_dirs': [ 'external/sfntly/cpp/src' ],
+            'defines': [ 'SK_PDF_USE_SFNTLY' ],
             'libraries': [
               'libsfntly.a',
               '-licuuc',
               '-licui18n',
             ],
           }
         ],
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           '../include/core',  # SkDocument.h
         ],
       },
     },
   ],
 }