Revert of Revert of Support GLSL es 3.00 (patchset #1 id:1 of https://codereview.chromium.org/661603009/)

Reason for revert:
DEPS roll still failing:
https://codereview.chromium.org/661993002/

Reverting the revert.

Original issue's description:
> Revert of Support GLSL es 3.00 (patchset #5 id:80001 of https://codereview.chromium.org/659443007/)
>
> Reason for revert:
> Trying to fix DEPS roll failure:
> https://codereview.chromium.org/660113002/
>
> Link to failing builds:
> http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/29578
> http://build.chromium.org/p/tryserver.blink/builders/linux_blink_dbg/builds/29354
>
> Original issue's description:
> > Support GLSL es 3.00
> >
> > BUG=skia:
> >
> > Committed: https://skia.googlesource.com/skia/+/62372bcc6abe3537dac98dd9b9172cf3b85afa2b
>
> TBR=bsalomon@google.com,joshualitt@google.com,joshualitt@chromium.org
> NOTREECHECKS=true
> NOTRY=true
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/79b2b1fb12202d22411b607a095cb26c6e4fe8b7

TBR=bsalomon@google.com,joshualitt@google.com,joshualitt@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/647043005
Revert of Override SkCanvas::drawImage() in SkDeferredCanvas and SkGPipe (patchset #5 id:80001 of https://codereview.chromium.org/613673005/)

Reason for revert:
Trying to fix DEPS roll failure:
https://codereview.chromium.org/660113002/

Link to failing builds:
http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/29578
http://build.chromium.org/p/tryserver.blink/builders/linux_blink_dbg/builds/29354

Original issue's description:
> Override SkCanvas::drawImage() in SkDeferredCanvas and SkGPipe
>
> BUG=skia:2947
>
> Committed: https://skia.googlesource.com/skia/+/687732fe046c9cfec940f2d7f661cd97651d10a8

TBR=junov@chromium.org,reed@google.com,bsalomon@chromium.org,piotaixr@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=skia:2947

Review URL: https://codereview.chromium.org/658293004
webtry: Add logserver to serve /tmp/glog.

This setup and runs a logserver, like the one being used by skiaperf, to
serve the directory /tmp/glog, so we don't need to ssh into the instance
to see the logs of the webtry application.

This is a follow up to suggestion made in codereview.chromium.org/655323002.

BUG=None
R=jcgregorio@google.com

Review URL: https://codereview.chromium.org/643903003
Add recreate_skps script

BUG=skia:3008

Review URL: https://codereview.chromium.org/655313003