Roll src/third_party/skia/ 78c8f30d6..604b197c6 (6 commits; 1 trivial rolls)

https://skia.googlesource.com/skia.git/+log/78c8f30d6167..604b197c6b32

$ git log 78c8f30d6..604b197c6 --date=short --no-merges --format='%ad %ae %s'
2017-05-15 egdaniel Add support for creating a shared vulkan test context
2017-05-15 csmartdalton Convert GrMesh back to a class
2017-05-15 robertphillips Rename finishOpList to finishFlush and call it less frequently
2017-05-15 benjaminwagner Remove old iPadMini4 jobs.
2017-05-15 mtklein add unaligned_store()

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
[email protected]

Change-Id: I27f947d424639121110456d108ac50996effd271
Reviewed-on: https://chromium-review.googlesource.com/506309
Reviewed-by: Skia Deps Roller <[email protected]>
Commit-Queue: Skia Deps Roller <[email protected]>
Cr-Commit-Position: refs/heads/master@{#471880}
diff --git a/DEPS b/DEPS
index 29330a1..667e31bd6 100644
--- a/DEPS
+++ b/DEPS
@@ -40,7 +40,7 @@
   # 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': '78c8f30d6167b4bf40937c6a8814cd448e2228a6',
+  'skia_revision': '604b197c6b3262206d99e71030a8071bcc36083d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.