Extension docs server: assume everything is "trunk" if the branch can't be

Extension docs server: assume everything is "trunk" if the branch can't be
determined (e.g. omahaproxy down).

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=175068

[Yoyo Zhou, 2013-01-04 00:33:09]

LGTM

[commit-bot: I haz the power, 2013-01-04 00:49:08]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/kalman@chromium.org/11744027/3001

[commit-bot: I haz the power, 2013-01-04 00:50:15]

Presubmit check for 11744027-3001 failed and returned exit status 1.


*----------------------------------*
| integration_test.py has failures |
*----------------------------------*
testCron (__main__.IntegrationTest)
Traceback (most recent call last):
  File "docs/server2/integration_test.py", line 127, in testCron
    Handler(request, response, local_path=BASE_PATH).get()
  File
"/b/commit-queue/workdir/chromium/chrome/common/extensions/docs/server2/handler.py",
line 368, in get
    self._HandleCron(path)
  File
"/b/commit-queue/workdir/chromium/chrome/common/extensions/docs/server2/handler.py",
line 289, in _HandleCron
    channel)
  File
"/b/commit-queue/workdir/chromium/chrome/common/extensions/docs/server2/handler.py",
line 244, in _Render
    logging.error('Error rendering %s: %s' % (path, str(e)))
AssertionError: Error rendering trunk/extensions/tabs.html: $ref
extension.onConnect could not be resolved.

testAllPublicTemplates (__main__.IntegrationTest)
Traceback (most recent call last):
  File "docs/server2/integration_test.py", line 103, in testAllPublicTemplates
    self._RunPublicTemplatesTest()
  File "docs/server2/integration_test.py", line 96, in _RunPublicTemplatesTest
    self.fail('\n'.join(failures))
AssertionError: Error rendering extensions/tabs.html: $ref extension.onConnect
could not be resolved.
Error rendering extensions/whats_new.html: $ref extension.sendMessage could not
be resolved.
Error rendering extensions/manifestVersion.html: $ref extension.Port could not
be resolved.
Error rendering apps/whats_new.html: $ref extension.sendMessage could not be
resolved.
Error rendering apps/manifestVersion.html: $ref extension.Port could not be
resolved.

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