Roll external/skia f90aa014d..d20b5c489 (3 commits)

https://skia.googlesource.com/skia.git/+log/f90aa014d..d20b5c489

2017-06-14 reed@google.com use #ifdef instead of #if for SK_VULKAN
2017-06-14 robertphillips@google.com Revert "Revert "Update skia to use ifdefs for Vulkan code instead of dummy header""
2017-06-14 recipe-roller@chromium.org Roll recipe dependencies (trivial).

Test: Presubmit checks will test this change.
Change-Id: I7d2d94654f4ed526101e8c755d08d3a685beb681
diff --git a/Android.bp b/Android.bp
index 80d9977..8c0a60a 100644
--- a/Android.bp
+++ b/Android.bp
@@ -21,6 +21,7 @@
         "include/encode/",
         "include/gpu/",
         "include/gpu/gl/",
+        "include/gpu/vk/",
         "include/pathops/",
         "include/ports/",
         "include/svg/",
@@ -38,6 +39,7 @@
         "include/encode/",
         "include/gpu/",
         "include/gpu/gl/",
+        "include/gpu/vk/",
         "include/pathops/",
         "include/ports/",
         "include/private/",
@@ -852,6 +854,7 @@
         "include/encode/",
         "include/gpu/",
         "include/gpu/gl/",
+        "include/gpu/vk/",
         "include/pathops/",
         "include/ports/",
         "include/private/",
@@ -1616,6 +1619,7 @@
         "include/encode/",
         "include/gpu/",
         "include/gpu/gl/",
+        "include/gpu/vk/",
         "include/pathops/",
         "include/ports/",
         "include/private/",