Make GPU cache size cmd line configurable in GM.

Make GPU cache size cmd line configurable in GM.
Committed: https://code.google.com/p/skia/source/detail?r=8076

[robertphillips, 2013-03-08 19:51:51]

lgtm + nits

https://codereview.chromium.org/12717002/diff/1/gm/gmmain.cpp
File gm/gmmain.cpp (right):

https://codereview.chromium.org/12717002/diff/1/gm/gmmain.cpp#newcode1036
gm/gmmain.cpp:1036: #if SK_SUPPORT_GPU
0 for both will disable the cache?

https://codereview.chromium.org/12717002/diff/1/gm/gmmain.cpp#newcode1269
gm/gmmain.cpp:1269: }
else {
    SkDebugf("missing arg for --gpucachesize\n");
    usage(commandName);
    return -1;
}

https://codereview.chromium.org/12717002/diff/1/gm/gmmain.cpp#newcode1516
gm/gmmain.cpp:1516: }
// Set the passed in texture cache limits?

[robertphillips, 2013-03-08 19:52:51]

Also (as separate CLs) do we want to propagate this to bench, bench_pictures and
SampleApp?

[bsalomon, 2013-03-08 20:00:12]

Yes, I think we want to do the others.

https://codereview.chromium.org/12717002/diff/1/gm/gmmain.cpp
File gm/gmmain.cpp (right):

https://codereview.chromium.org/12717002/diff/1/gm/gmmain.cpp#newcode1269
gm/gmmain.cpp:1269: }
On 2013/03/08 19:51:51, robertphillips wrote:
> else {
>     SkDebugf("missing arg for --gpucachesize\n");
>     usage(commandName);
>     return -1;
> }

Done.

https://codereview.chromium.org/12717002/diff/1/gm/gmmain.cpp#newcode1516
gm/gmmain.cpp:1516: }
On 2013/03/08 19:51:51, robertphillips wrote:
> // Set the passed in texture cache limits?

Done.

[bsalomon, 2013-03-08 20:01:05]

https://codereview.chromium.org/12717002/diff/1/gm/gmmain.cpp
File gm/gmmain.cpp (right):

https://codereview.chromium.org/12717002/diff/1/gm/gmmain.cpp#newcode1036
gm/gmmain.cpp:1036: #if SK_SUPPORT_GPU
On 2013/03/08 19:51:51, robertphillips wrote:
> 0 for both will disable the cache?

Done.

[bsalomon, 2013-03-11 20:22:33]

Committed patchset #3 manually as r8076 (presubmit successful).