Roll src/third_party/skia b520476ee6dc..4918bbcbfd54 (4 commits) (#9393)

https://skia.googlesource.com/skia.git
/%2Blog/b520476ee6dc..4918bbcbfd54

git log b520476ee6dcde51054d14c183c8e2c12c7602f5..4918bbcbfd5444919b4f11c3fa3d4422cf3b1236 --date=short --no-merges --format=%ad %ae %s
2019-06-19 rmistry@google.com Rename recipe from perf_skottie_wasm to perf_skottiewasm_lottieweb
2019-06-19 benjaminwagner@google.com Update GPU driver for Intel Skylake and later
2019-06-19 senorblanco@chromium.org Rename a shader variable to please MSL.
2019-06-19 egdaniel@google.com Switch from querying swizzle on caps to using swizzles stored on proxies.

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-flutter-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff (bsalomon@google.com), and stop
the roller if necessary.

DEPS

@@ -24,7 +24,7 @@ vars = {
   'fuchsia_git': 'https://fuchsia.googlesource.com',
   'github_git': 'https://github.com',
   'skia_git': 'https://skia.googlesource.com',
-  'skia_revision': 'b520476ee6dcde51054d14c183c8e2c12c7602f5',
+  'skia_revision': '4918bbcbfd5444919b4f11c3fa3d4422cf3b1236',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

ci/licenses_golden/licenses_skia

-Signature: e9147d32b18197c5ff84bda8d756365b
+Signature: d775fee889f0cca00c09dcf3c1b78b14
 
 UNUSED LICENSES:
 
@@ -2059,8 +2059,6 @@ FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/Perf-Mac10.13-C
 FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/Perf-Mac10.13-Clang-MacMini7.1-GPU-IntelIris5100-x86_64-Release-All-CommandBuffer.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/Perf-Ubuntu17-GCC-Golo-GPU-QuadroP400-x86_64-Release-All-Valgrind_SK_CPU_LIMIT_SSE41.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/Perf-Win10-Clang-Golo-GPU-QuadroP400-x86_64-Release-All-ANGLE.json
-FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/Perf-Win10-Clang-NUC8i5BEK-GPU-IntelIris655-x86_64-Release-All-Vulkan.json
-FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/Perf-Win10-Clang-NUC8i5BEK-GPU-IntelIris655-x86_64-Release-All.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/Perf-iOS-Clang-iPadPro-GPU-PowerVRGT7800-arm64-Release-All.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/trybot.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf_canvaskit.expected/Perf-Debian9-EMCC-GCE-CPU-AVX2-wasm-Release-All-CanvasKit.json
@@ -2068,12 +2066,12 @@ FILE: ../../../third_party/skia/infra/bots/recipes/perf_canvaskit.expected/pathk
 FILE: ../../../third_party/skia/infra/bots/recipes/perf_pathkit.expected/Perf-Debian9-EMCC-GCE-CPU-AVX2-asmjs-Release-All-PathKit.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf_pathkit.expected/Perf-Debian9-EMCC-GCE-CPU-AVX2-wasm-Release-All-PathKit.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf_pathkit.expected/pathkit_trybot.json
-FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottie_wasm.expected/skottie_wasm_perf.json
-FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottie_wasm.expected/skottie_wasm_perf_trybot.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottietrace.expected/Perf-Android-Clang-AndroidOne-GPU-Mali400MP2-arm-Release-All-Android_SkottieTracing.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottietrace.expected/Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-All-SkottieTracing.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottietrace.expected/skottietracing_parse_trace_error.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottietrace.expected/skottietracing_trybot.json
+FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottiewasm_lottieweb.expected/skottie_wasm_perf.json
+FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottiewasm_lottieweb.expected/skottie_wasm_perf_trybot.json
 FILE: ../../../third_party/skia/infra/bots/recipes/recreate_skps.expected/Housekeeper-Nightly-RecreateSKPs_Canary.json
 FILE: ../../../third_party/skia/infra/bots/recipes/recreate_skps.expected/Housekeeper-Weekly-RecreateSKPs.json
 FILE: ../../../third_party/skia/infra/bots/recipes/recreate_skps.expected/failed_upload.json
@@ -2126,7 +2124,6 @@ FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Win10-Clan
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Win10-Clang-Golo-GPU-QuadroP400-x86_64-Release-All-ReleaseAndAbandonGpuContext.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Win10-Clang-NUC5i7RYH-CPU-AVX2-x86_64-Debug-All-NativeFonts_GDI.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Win10-Clang-NUC5i7RYH-GPU-IntelIris6100-x86_64-Release-All-ANGLE.json
-FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Win10-Clang-NUC8i5BEK-GPU-IntelIris655-x86_64-Debug-All-Vulkan.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Win10-Clang-NUCD34010WYKH-GPU-IntelHD4400-x86_64-Release-All-ANGLE.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Win10-Clang-ShuttleA-GPU-GTX660-x86_64-Release-All-Vulkan.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Win10-Clang-ShuttleC-GPU-GTX960-x86_64-Debug-All-ANGLE.json