Change how SkDebugf is sent to stdout on Android.

gyp/gm.gyp

 # GYP file to build the "gm" (golden master) executable.
 {
   'includes': [
     'apptype_console.gypi',
   ],
   'targets': [
     {
       'target_name': 'gm',
       'type': 'executable',
       'include_dirs' : [
         '../src/core',
         '../src/effects',
         '../src/images',
         '../src/pipe/utils',
         '../src/utils',
       ],
       'includes': [
         'gmslides.gypi',
       ],
       'sources': [
         '../gm/gm.cpp',
         '../gm/gmmain.cpp',
         '../gm/system_preferences_default.cpp',
 
         '../src/pipe/utils/SamplePipeControllers.h',
         '../src/pipe/utils/SamplePipeControllers.cpp',
       ],
       'dependencies': [
+        'android_output.gyp:android_output',
         'etc1.gyp:libetc1',
         'flags.gyp:flags',
         'jsoncpp.gyp:jsoncpp',
         'pdf.gyp:pdf',
         'skia_lib.gyp:skia_lib',
         'tools.gyp:crash_handler',
         'tools.gyp:gm_expectations',
         'tools.gyp:proc_stats',
         'tools.gyp:resources',
         'tools.gyp:sk_tool_utils',
@@ skipping 52 matching lines @@
             '../src/gpu',
           ],
           'dependencies': [
             'gputest.gyp:skgputest',
           ],
         }],
       ],
     },
   ],
 }