Roll src/third_party/skia/ 9199a9fef..82945560e (15 commits).

https://chromium.googlesource.com/skia.git/+log/9199a9fef989..82945560e61f

$ git log 9199a9fef..82945560e --date=short --no-merges --format='%ad %ae %s'
2016-07-13 bungeman Disable embedded bitmap test on iOS.
2016-07-13 reed handle large conic weights
2016-07-13 senorblanco Fix vertex count estimate in GrTessellator.
2016-07-13 csmartdalton Add resource provider flag to avoid client-side buffers
2016-07-13 mtklein Turn back on nanobench on Debug trybots.
2016-07-13 robertphillips Retract PipelineBuilder from GrClip::apply
2016-07-13 brianosman Never allow dither for non-legacy (sRGB or F16) targets.
2016-07-13 mtklein Revert "Added the framework for having canvas/recorder/picture record depth_set's."
2016-07-13 csmartdalton Fix various issues with instanced rendering precision
2016-07-13 csmartdalton Replace switch statements in instanced vertex shaders
2016-07-13 csmartdalton Fix GL shader sources getting truncated by ADB log
2016-07-13 vjiaoblack Added the framework for having canvas/recorder/picture record depth_set's. GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2127233002
2016-07-13 mtklein SkRasterPipeline: simplify impl and remove need to rewire stages
2016-07-13 msarett Try blacklisting RAW images on Nexus 9
2016-07-13 mtklein Update SkOpts namespaces.

BUG=627414

CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_blink_rel
TBR=msarett@google.com

Review-Url: https://codereview.chromium.org/2149723002
Cr-Commit-Position: refs/heads/master@{#405301}

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': '9199a9fef9896636f673372d2ac1c00af036bf85',
+  'skia_revision': '82945560e61f2996d2749b74359d219f56c92dda',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.