Merge latest Skia into master (5 commits)

https://skia.googlesource.com/skia.git/+log/585dba8..32f2818

Test: Presubmit checks will test this change.
Change-Id: Ia857ba9186b05174d52f0036b4aab7bdca4252d5
diff --git a/Android.bp b/Android.bp
index 2305a10..73f4d9f 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1258,6 +1258,7 @@
         "tests/ColorSpaceXformTest.cpp",
         "tests/ColorTest.cpp",
         "tests/CopySurfaceTest.cpp",
+        "tests/CrossContextImageTest.cpp",
         "tests/DFPathRendererTest.cpp",
         "tests/DashPathEffectTest.cpp",
         "tests/DataRefTest.cpp",