Add SwiftShader to DEPS.

Bug: skia:7671
No-Try: true
Change-Id: Ib41428b5c3ed8d6655fac38e525014663ce85817
Reviewed-on: https://skia-review.googlesource.com/121357
Commit-Queue: Hal Canary <halcanary@google.com>
Auto-Submit: Ben Wagner <benjaminwagner@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
diff --git a/DEPS b/DEPS
index 336ea15..a0645ea 100644
--- a/DEPS
+++ b/DEPS
@@ -22,7 +22,8 @@
   "third_party/externals/sfntly"        : "https://chromium.googlesource.com/external/github.com/googlei18n/sfntly.git@b18b09b6114b9b7fe6fc2f96d8b15e8a72f66916",
   "third_party/externals/spirv-headers" : "https://skia.googlesource.com/external/github.com/KhronosGroup/SPIRV-Headers.git@661ad91124e6af2272afd00f804d8aa276e17107",
   "third_party/externals/spirv-tools"   : "https://skia.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git@e9e4393b1c5aad7553c05782acefbe32b42644bd",
- #"third_party/externals/v8"            : "https://chromium.googlesource.com/v8/v8.git@5f1ae66d5634e43563b2d25ea652dfb94c31a3b4",
+  "third_party/externals/swiftshader"   : "https://swiftshader.googlesource.com/SwiftShader@c8eedebdf51efd073402c3d0f15620d08ede9e9c",
+  #"third_party/externals/v8"            : "https://chromium.googlesource.com/v8/v8.git@5f1ae66d5634e43563b2d25ea652dfb94c31a3b4",
   "third_party/externals/zlib"          : "https://chromium.googlesource.com/chromium/src/third_party/zlib@e7afdfe128e01ca480a28f757b571957befdd962",
 }