Added second "truncated" cpu/wall timer to bench

The old bench timings weren't including the time for the OpenGL commands to finish. This CL adds that time to the standard wall, cpu and gpu times and adds a new truncated timer that does not include that time in its wall and cpu times.

[bungeman, 2012-08-24 20:28:51]

http://codereview.appspot.com/6476064/diff/2001/bench/benchmain.cpp
File bench/benchmain.cpp (right):

http://codereview.appspot.com/6476064/diff/2001/bench/benchmain.cpp#newcode399
bench/benchmain.cpp:399: "[-timers [wcg23]*] [-rotate]\n"
wcgWC

http://codereview.appspot.com/6476064/diff/2001/bench/benchmain.cpp#newcode868
bench/benchmain.cpp:868: SkString fTruncatedWallStr(" msecs = ");
msecs and cmsecs already taken, Wmsecs and Cmsecs?

[robertphillips, 2012-08-27 13:08:46]

http://codereview.appspot.com/6476064/diff/2001/bench/benchmain.cpp
File bench/benchmain.cpp (right):

http://codereview.appspot.com/6476064/diff/2001/bench/benchmain.cpp#newcode399
bench/benchmain.cpp:399: "[-timers [wcg23]*] [-rotate]\n"
On 2012/08/24 20:28:51, bungeman wrote:
> wcgWC

Done.

http://codereview.appspot.com/6476064/diff/2001/bench/benchmain.cpp#newcode868
bench/benchmain.cpp:868: SkString fTruncatedWallStr(" msecs = ");
On 2012/08/24 20:28:51, bungeman wrote:
> msecs and cmsecs already taken, Wmsecs and Cmsecs?

Done.

[bsalomon, 2012-08-27 13:31:14]

LGTM

https://codereview.appspot.com/6476064/diff/1006/bench/BenchTimer.h
File bench/BenchTimer.h (left):

https://codereview.appspot.com/6476064/diff/1006/bench/BenchTimer.h#oldcode21
bench/BenchTimer.h:21: * This class combines a SysTimer and a GpuTimer into one
single,
This comment could probably use an update to explain the truncated timers.

[robertphillips, 2012-08-27 15:35:35]

https://codereview.appspot.com/6476064/diff/1006/bench/BenchTimer.h
File bench/BenchTimer.h (left):

https://codereview.appspot.com/6476064/diff/1006/bench/BenchTimer.h#oldcode21
bench/BenchTimer.h:21: * This class combines a SysTimer and a GpuTimer into one
single,
On 2012/08/27 13:31:15, bsalomon wrote:
> This comment could probably use an update to explain the truncated timers.

Done.

[robertphillips, 2012-08-28 12:19:00]

committed as r5305