Roll src/third_party/skia/ 301dfc0bb..9c46b68d5 (2 commits).

https://skia.googlesource.com/skia.git/+log/301dfc0bba37..9c46b68d5340

$ git log 301dfc0bb..9c46b68d5 --date=short --no-merges --format='%ad %ae %s'
2016-11-06 benjaminwagner Revert "Further centralize computation of GrSurface VRAM consumption"
2016-11-06 benjaminwagner Revert "Limit GL_TEXTURE_RECTANGLE filtering to bilinear."

BUG=662630,662630

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, see:
http://www.chromium.org/developers/tree-sheriffs/sheriff-details-chromium#TOC-Failures-due-to-DEPS-rolls

CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
TBR=scroggo@google.com

Review-Url: https://codereview.chromium.org/2480113002
Cr-Commit-Position: refs/heads/master@{#430190}

DEPS

@@ -40,7 +40,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.
-  'skia_revision': '301dfc0bba37bbda8a269b066d3fd0e9b16b7cd0',
+  'skia_revision': '9c46b68d5340efc91368cef1cc5775f13c97cab8',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.