add pathops debugging to fuzz

gyp/fuzz.gyp

 # Copyright 2016 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
     'includes': [ 'apptype_console.gypi' ],
     'targets': [{
         'target_name': 'fuzz',
         'type': 'executable',
         'defines': [
           'SK_FUZZ_LOGGING',
         ],
-        'sources': [ '<!@(python find.py ../fuzz "*.cpp")' ],
+        'sources': [
+          '<!@(python find.py ../fuzz "*.cpp")',
+          '../tests/PathOpsDebug.cpp',
+        ],
         'dependencies': [
             'flags.gyp:flags',
             'skia_lib.gyp:skia_lib',
         ],
         'include_dirs': [
+            '../include/private',
             '../src/core',
+            '../src/pathops',
         ],
     }],
 }