gm self-tests: generate JSON expectations, in addition to image expectations

gm self-tests: generate JSON expectations, in addition to image expectations
Committed: https://code.google.com/p/skia/source/detail?r=7624

[epoger, 2013-02-06 17:11:15]

This CL doesn't actually test against the JSON expectations yet (gm doesn't know
how to read them in yet!), but it prepares us to do so in a following CL.

https://codereview.appspot.com/7310050/diff/1/gm/tests/outputs/compared-again...
File
gm/tests/outputs/compared-against-different-pixels/output-expected/command_line
(right):

https://codereview.appspot.com/7310050/diff/1/gm/tests/outputs/compared-again...
gm/tests/outputs/compared-against-different-pixels/output-expected/command_line:1:
out/Debug/gm --hierarchy --match dashing2 --config 8888 --config 565 -r
gm/tests/inputs/images/different-pixels --writeJsonSummary
gm/tests/outputs/compared-against-different-pixels/output-actual/json-summary.txt
The image expectations that we have used to date are now moved into an images/
subdir; the new JSON expectations (checksums) go in json/ subdir.

[epoger, 2013-02-06 18:26:10]

Ravi- patchset 2 incorporates your in-person suggestions (notes below). PTAL

https://codereview.appspot.com/7310050/diff/4001/gm/tests/outputs/compared-ag...
File
gm/tests/outputs/compared-against-different-pixels-images/output-expected/command_line
(right):

https://codereview.appspot.com/7310050/diff/4001/gm/tests/outputs/compared-ag...
gm/tests/outputs/compared-against-different-pixels-images/output-expected/command_line:1:
out/Debug/gm --hierarchy --match dashing2 --config 8888 --config 565 -r
gm/tests/inputs/images/different-pixels --writeJsonSummary
gm/tests/outputs/compared-against-different-pixels-images/output-actual/json-summary.txt
Added "-images" to the output dirs that run comparisons against images, so we
can create "-json" ones later.

https://codereview.appspot.com/7310050/diff/4001/gm/tests/run.sh
File gm/tests/run.sh (right):

https://codereview.appspot.com/7310050/diff/4001/gm/tests/run.sh#newcode106
gm/tests/run.sh:106: # Run GM to write out the images actually generated.
and added some comments here

[rmistry, 2013-02-06 18:36:48]

LGTM