enable SK_FONTHOST_USES_FONTMGR for mac and win. linux fontmgr not ready

gyp/common_conditions.gypi

 # conditions used in both common.gypi and skia.gyp in chromium
 #
 {
   'defines': [
     'SK_ALLOW_STATIC_GLOBAL_INITIALIZERS=<(skia_static_initializers)',
 #    'SK_SUPPORT_HINTING_SCALE_FACTOR',
   ],
   'conditions' : [
     [ 'skia_gpu == 1',
       {
@@ skipping 14 matching lines @@
       }, {
         'defines': [
           'SK_SUPPORT_OPENCL=0',
         ],
       },
     ],
     [ 'skia_os == "win"',
       {
         'defines': [
           'SK_BUILD_FOR_WIN32',
+          'SK_FONTHOST_USES_FONTMGR',
           'SK_IGNORE_STDINT_DOT_H',
           '_CRT_SECURE_NO_WARNINGS',
           'GR_GL_FUNCTION_TYPE=__stdcall',
         ],
         'msvs_cygwin_shell': 0,
         'msvs_settings': {
           'VCCLCompilerTool': {
             'WarningLevel': '3',
             'ProgramDataBaseFileName': '$(OutDir)\\$(ProjectName).pdb',
             'DebugInformationFormat': '3',
@@ skipping 241 matching lines @@
       },
     ],
 
     [ 'skia_os == "mac"',
       {
         'variables': {
           'mac_sdk%': '<!(python <(DEPTH)/tools/find_mac_sdk.py 10.6)',
         },
         'defines': [
           'SK_BUILD_FOR_MAC',
+          'SK_FONTHOST_USES_FONTMGR',
         ],
         'conditions' : [
           [ 'skia_arch_width == 64', {
             'xcode_settings': {
               'ARCHS': ['x86_64'],
             },
           }],
           [ 'skia_arch_width == 32', {
             'xcode_settings': {
               'ARCHS': ['i386'],
@@ skipping 172 matching lines @@
   'xcode_settings': {
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: