Roll external/skia 89c8fecb6..a924dd3b7 (7 commits)
https://skia.googlesource.com/skia.git/+log/89c8fecb6..a924dd3b7
2017-06-07 fmalita@chromium.org Use burst mode for linear gradients w/ > 2 stops
2017-06-07 csmartdalton@google.com Introduce dynamic pipeline state
2017-06-07 msarett@google.com Reland "Handle different types of streams in different jpeg source managers"
2017-06-07 reed@google.com disable coverage optimization for hairlines
2017-06-07 robertphillips@google.com Suppress rendererability of kAlpha8 GL_CHROMIUM_framebuffer_multisample for ANGLE D3D9
2017-06-07 csmartdalton@google.com Fix croppedrects GM
2017-06-07 scroggo@google.com Fix alpha issues in SkGifCodec
Test: Presubmit checks will test this change.
Change-Id: I5bd450ee610b02ce387f1a71e62d12741e6f7263