Move exportable_commits_since to webkitpy/w3c/common.py.

third_party/WebKit/Tools/Scripts/webkitpy/w3c/chromium_commit.py

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from webkitpy.common.memoized import memoized
 from webkitpy.common.webkit_finder import WebKitFinder
-from webkitpy.w3c.deps_updater import DepsUpdater
 
 CHROMIUM_WPT_DIR = 'third_party/WebKit/LayoutTests/external/wpt/'
 
 
 class ChromiumCommit(object):
 
     def __init__(self, host, sha=None, position=None):
         """
         Args:
             host: A Host object
@@ skipping 56 matching lines @@
         changed_files = self.host.executive.run_command([
             'git', 'diff-tree', '--name-only', '--no-commit-id', '-r', self.sha,
             '--', self.absolute_chromium_wpt_dir()
         ]).splitlines()
 
         blacklist = [
             'MANIFEST.json',
             self.host.filesystem.join('resources', 'testharnessreport.js'),
         ]
         qualified_blacklist = [CHROMIUM_WPT_DIR + f for f in blacklist]
-        return [f for f in changed_files if f not in qualified_blacklist and not DepsUpdater.is_baseline(f)]
+
+        return [f for f in changed_files if f not in qualified_blacklist and not self.is_baseline(f)]
+
+    @staticmethod
+    def is_baseline(basename):
+        # TODO(qyearsley): Find a better, centralized place for this.
+        return basename.endswith('-expected.txt')
 
     def format_patch(self):
         """Makes a patch with only exportable changes."""
         filtered_files = self.filtered_changed_files()
 
         if not filtered_files:
             return ''
 
         return self.host.executive.run_command([
             'git', 'format-patch', '-1', '--stdout', self.sha, '--'
         ] + filtered_files, cwd=self.absolute_chromium_dir())
 
     @memoized
     def absolute_chromium_wpt_dir(self):
         finder = WebKitFinder(self.host.filesystem)
         return finder.path_from_webkit_base('LayoutTests', 'external', 'wpt')
 
     @memoized
     def absolute_chromium_dir(self):
         finder = WebKitFinder(self.host.filesystem)
         return finder.chromium_base()