Roll src/third_party/skia/ bbfe92bc1..950fc6c63 (3 commits).

https://chromium.googlesource.com/skia.git/+log/bbfe92bc1dd2..950fc6c6360d

$ git log bbfe92bc1..950fc6c63 --date=short --no-merges --format='%ad %ae %s'
2016-09-19 brianosman Add F16 to the list of allowed formats in GaussianBlur
2016-09-19 fmalita [SVGDom] Only apply opacity when needed
2016-09-19 cblume Remove release asserts.

BUG=643845

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

Review-Url: https://codereview.chromium.org/2351713002
Cr-Commit-Position: refs/heads/master@{#419455}

DEPS

@@ -36,7 +36,7 @@ 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': 'bbfe92bc1dd2b0a65e63b3caed9873dbc4df522a',
+  'skia_revision': '950fc6c6360d34d3288c1e49cf635b9e12fc2695',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.