Support serialization in SkRecord-backed SkPictures.

gyp/dm.gyp

 # GYP for "dm" (Diamond Master, a.k.a Dungeon master, a.k.a GM 2).
 # vim: set expandtab tabstop=4 shiftwidth=4
 {
     'includes': [ 'apptype_console.gypi' ],
 
     'targets': [{
         'target_name': 'dm',
         'type': 'executable',
         'include_dirs': [
             '../bench',
@@ skipping 18 matching lines @@
         'sources': [
             '../dm/DM.cpp',
             '../dm/DMBenchTask.cpp',
             '../dm/DMCpuGMTask.cpp',
             '../dm/DMExpectationsTask.cpp',
             '../dm/DMGpuGMTask.cpp',
             '../dm/DMPDFRasterizeTask.cpp',
             '../dm/DMPDFTask.cpp',
             '../dm/DMPipeTask.cpp',
             '../dm/DMQuiltTask.cpp',
-            '../dm/DMRecordTask.cpp',
             '../dm/DMReplayTask.cpp',
             '../dm/DMReporter.cpp',
             '../dm/DMSKPTask.cpp',
             '../dm/DMSerializeTask.cpp',
             '../dm/DMTask.cpp',
             '../dm/DMTaskRunner.cpp',
             '../dm/DMTestTask.cpp',
             '../dm/DMUtil.cpp',
             '../dm/DMWriteTask.cpp',
             '../gm/gm.cpp',
@@ skipping 18 matching lines @@
               'libraries': [ '-lskia' ],
           }],
           ['skia_poppler_enabled', {
               'sources':      [ '../src/utils/SkPDFRasterizer.cpp' ],
               'defines':      [ 'SK_BUILD_POPPLER' ],
               'dependencies': [ 'poppler.gyp:*' ],
           }],
         ],
     }]
 }