Insert swapbuffers into GPU benchmarks.

Insert swapbuffers into GPU benchmarks.

R=mtklein@google.com

Committed: https://code.google.com/p/skia/source/detail?r=11704

[djsollen, 2013-10-10 14:50:07]

The nexus 4 almost makes a complete run before dying, but I'll have to see if I
can drop the min threshold there to say 16ms and see if it completes.

[mtklein, 2013-10-10 15:01:05]

lgtm

https://codereview.chromium.org/26489003/diff/6001/bench/benchmain.cpp
File bench/benchmain.cpp (right):

https://codereview.chromium.org/26489003/diff/6001/bench/benchmain.cpp#newcod...
bench/benchmain.cpp:650: // currently we only setup the frame interval for the
GPU
Any particular reason?  Just to keep the CL focused on GPU?

[djsollen, 2013-10-10 17:00:09]

the bitmap_8888_update* benches can be run upwards of 524,288 times and still
not converge. This is still problematic on the Adreno as the driver keeps
running out of memory even though we start deleting textures from our cache.

[djsollen, 2013-10-10 17:33:43]

Committed patchset #7 manually as r11704 (presubmit successful).