rebaseline_server: when first started, tell client results are still being generated

rebaseline_server: when first started, tell client results are still being generated

(SkipBuildbotRuns)
NOTREECHECKS=True
NOTRY=True

Committed: http://code.google.com/p/skia/source/detail?r=13879

[epoger, 2014-03-20 18:26:44]

Ready for review at patchset 1.

https://codereview.chromium.org/206723002/diff/1/gm/rebaseline_server/server.py
File gm/rebaseline_server/server.py (right):

https://codereview.chromium.org/206723002/diff/1/gm/rebaseline_server/server....
gm/rebaseline_server/server.py:180: # Since we don't have any results ready yet,
prepare a dummy results file
Reason for the change:

Since https://code.google.com/p/skia/source/detail?r=13876 ('rebaseline_server:
serve JSON from static file, rather than generating it live'), when you run the
rebaseline_server locally, you will get an error when you try to load results in
the web client (until the results are ready).

Previously, the server had provided a "try again" message that the web client
would reload periodically until the results were available.  This CL restores
that functionality.

[Stephen White, 2014-03-20 18:29:55]

LGTM

[epoger, 2014-03-20 18:30:51]

The CQ bit was checked by epoger@google.com

[commit-bot: I haz the power, 2014-03-20 18:30:55]

CQ is trying da patch. Follow status at
https://skia-tree-status.appspot.com/cq/epoger@google.com/206723002/1

[commit-bot: I haz the power, 2014-03-20 18:31:02]

Change committed as 13879