Move gm-expected to trunk/expectations/gm , and modify scripts that use it.

buildbot/tools/tests/factory_configuration/expected/Canary-Chrome-Ubuntu12-Ninja-x86_64-Default-Trybot

 {
     'TargetPath': <Object>,
     '_autogen_svn_password_file': '.autogen_svn_password',
     '_autogen_svn_username_file': '.autogen_svn_username',
     '_build_targets': [
         'chrome',
     ],
     '_builder_name': 'Canary-Chrome-Ubuntu12-Ninja-x86_64-Default-Trybot',
     '_common_args': [
         '--autogen_svn_baseurl',
@@ skipping 36 matching lines @@
     '_configuration': 'Debug',
     '_default_clobber': <Object>,
     '_deps_target_os': None,
     '_do_patch_step': <Object>,
     '_do_upload_bench_results': <Object>,
     '_do_upload_results': <Object>,
     '_env_vars': {},
     '_flavor': 'chrome_canary',
     '_gclient_solutions': [
         '{ "name": "src", "url": "http://skia.googlecode.com/svn/src", "custom_deps": {},"custom_vars": {},},',
-        '{ "name": "gm-expected", "url": "http://skia.googlecode.com/svn/gm-expected", "custom_deps": {},"custom_vars": {},},',
     ],
     '_gyp_defines': {
         'skia_warnings_as_errors': '0',
     },
     '_make_flags': [],
     '_path_to_skia': 'third_party/skia',
     '_perf_output_basedir': None,
     '_skia_cmd_obj': <Object>,
     '_skia_svn_password_file': '.skia_svn_password',
     '_skia_svn_username_file': '.skia_svn_username',
@@ skipping 586 matching lines @@
                 'haltOnFailure': <Object>,
                 'hideStepIf': <Object>,
                 'is_rebaseline_step': <Object>,
                 'is_upload_step': <Object>,
                 'timeout': <Object>,
                 'workdir': 'build/src',
             },
         ],
     ],
 }