Roll src/third_party/skia/ 5143f2f37..fc3341632 (5 commits)

https://skia.googlesource.com/skia.git/+log/5143f2f3763b..fc3341632fc0

$ git log 5143f2f37..fc3341632 --date=short --no-merges --format='%ad %ae %s'
2017-06-12 mtklein port encode_bitmap_for_png() to SkRasterPipeline
2017-05-15 halcanary SkPDF: consolodate glyph runs on BUILD_FOR_WIN
2017-06-09 ethannicholas added SPIR-V RelaxedPrecision
2017-06-09 ethannicholas fixed issue with SkSL dead code elimination
2017-06-12 mtklein only SkHalfToFloat_finite_ftz(uint64_t hs) is called

Created with:
  roll-dep src/third_party/skia


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_trusty_blink_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.android:android_optional_gpu_tests_rel
TBR=rmistry@chromium.org

Change-Id: Ic832bc9bbf5c0ca20b9b6cd57a3b34d4a07a368c
Reviewed-on: https://chromium-review.googlesource.com/531264Reviewed-by: Skia Deps Roller <skia-deps-roller@chromium.org>
Commit-Queue: Skia Deps Roller <skia-deps-roller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#478661}

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': '5143f2f3763bb1ccbcb893488775e6ed7221a7bf',
+  'skia_revision': 'fc3341632fc04264e968bd1996ccb73b95088084',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.