[depot_tools] Allow gclient runhooks to work offline w/safesync_url.

R=maruel@chromium.org
BUG=None (AFAIK)
TEST=Turn off networking, run gclient runhooks.

Review URL: https://chromiumcodereview.appspot.com/10750007

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@145878 0039d316-1c4b-4281-b951-d872f2087c98

gclient.py

@@ -1007,7 +1007,7 @@ solutions = [
     revision_overrides = {}
     # It's unnecessary to check for revision overrides for 'recurse'.
     # Save a few seconds by not calling _EnforceRevisions() in that case.
-    if command is not 'recurse':
+    if command not in ('diff', 'recurse', 'runhooks', 'status'):
       revision_overrides = self._EnforceRevisions()
     pm = None
     # Disable progress for non-tty stdout.

tests/trychange_unittest.py

@@ -108,6 +108,7 @@ class SVNUnittest(TryChangeTestsBase):
     self.compareMembers(trychange.SVN, members)
 
   def testBasic(self):
+    # pylint: disable=E1103
     trychange.os.path.abspath(self.fake_root).AndReturn(self.fake_root)
     trychange.scm.SVN.GetCheckoutRoot(self.fake_root).AndReturn(self.fake_root)
     trychange.scm.SVN.GenerateDiff(['foo.txt', 'bar.txt'],