Revert of SkTime updates

Revert of SkTime updates (patchset #2 id:20001 of https://codereview.chromium.org/1521293002/ )

Reason for revert:
linux Canary builder has no std::steady_clock.  Weird...

Original issue's description:
> SkTime updates
> 
> 1) Use steady_clock instead of high_resolution_clock. If we don't have a
> guarantee of monotonicity, it's pretty much useless for timing things.
> 
> 2) Implement Mac/iOS with <chrono> too.  This was waiting on C++11 library support.
> 
> Both high_resolution_clock and steady_clock are (still) busted on MSVC 2013,
> so no change there.
> 
> BUG=skia:
> 
> Committed: https://skia.googlesource.com/skia/+/6a20871e5aeaa7e61f3348694bf436af16f824b9

TBR=herb@google.com,mtklein@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Committed: https://skia.googlesource.com/skia/+/4e4155df100b77d11bd14591c7716743369fde9b

[mtklein, 2015-12-14 18:54:08]

Created Revert of SkTime updates

[commit-bot: I haz the power, 2015-12-14 18:54:14]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1529603002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1529603002/1

[commit-bot: I haz the power, 2015-12-14 18:54:27]

Description was changed from

==========
Revert of SkTime updates (patchset #2 id:20001 of
https://codereview.chromium.org/1521293002/ )

Reason for revert:
linux Canary builder has no std::steady_clock.  Weird...

Original issue's description:
> SkTime updates
> 
> 1) Use steady_clock instead of high_resolution_clock. If we don't have a
> guarantee of monotonicity, it's pretty much useless for timing things.
> 
> 2) Implement Mac/iOS with <chrono> too.  This was waiting on C++11 library
support.
> 
> Both high_resolution_clock and steady_clock are (still) busted on MSVC 2013,
> so no change there.
> 
> BUG=skia:
> 
> Committed:
https://skia.googlesource.com/skia/+/6a20871e5aeaa7e61f3348694bf436af16f824b9

TBR=herb@google.com,mtklein@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:
==========

to

==========
Revert of SkTime updates (patchset #2 id:20001 of
https://codereview.chromium.org/1521293002/ )

Reason for revert:
linux Canary builder has no std::steady_clock.  Weird...

Original issue's description:
> SkTime updates
> 
> 1) Use steady_clock instead of high_resolution_clock. If we don't have a
> guarantee of monotonicity, it's pretty much useless for timing things.
> 
> 2) Implement Mac/iOS with <chrono> too.  This was waiting on C++11 library
support.
> 
> Both high_resolution_clock and steady_clock are (still) busted on MSVC 2013,
> so no change there.
> 
> BUG=skia:
> 
> Committed:
https://skia.googlesource.com/skia/+/6a20871e5aeaa7e61f3348694bf436af16f824b9

TBR=herb@google.com,mtklein@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Committed:
https://skia.googlesource.com/skia/+/4e4155df100b77d11bd14591c7716743369fde9b
==========

[commit-bot: I haz the power, 2015-12-14 18:54:28]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/4e4155df100b77d11bd14591c7716743369fde9b