Roll src/third_party/skia/ adf5afa62..69df02062 (6 commits).

https://chromium.googlesource.com/skia.git/+log/adf5afa628ad..69df0206252c

$ git log adf5afa62..69df02062 --date=short --no-merges --format='%ad %ae %s'
2016-06-03 bungeman Remove some uses of SK_SUPPORT_LEGACY_TYPEFACE_PTR.
2016-06-03 bungeman Unref GrXPFactory.
2016-06-03 cblume SkMipMap::ComputeLevelSize to return SkISize
2016-06-03 csmartdalton Don't use complex blend mode for shapes gm
2016-06-03 cblume Plumbing mipmaps to the point of creation.
2016-06-03 robertphillips Make GrClipMaskManager stateless and push GrPipelineBuilder construction downstack

BUG=578304,578304

CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
TBR=herb@google.com

Review-Url: https://codereview.chromium.org/2032133004
Cr-Commit-Position: refs/heads/master@{#397852}

DEPS

@@ -39,7 +39,7 @@ 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': 'adf5afa628adb62a0ad451d07ef1442381a0ee20',
+  'skia_revision': '69df0206252ce0e6293c60274a1dfc363bb2e3b5',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.