Add Goma support in gn_flavor.

Using full paths in skia.h causes "file not found" with Goma. All other
Builds seem fine without the path, so I changed find_headers.py to use
the basename.

Change-Id: Ib520e91a92ebffe36a736eb53f643d359f5bb2ce
Reviewed-on: https://skia-review.googlesource.com/79360
Reviewed-by: Greg Daniel <egdaniel@google.com>
Reviewed-by: Eric Boren <borenet@google.com>
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
diff --git a/infra/bots/tasks.json b/infra/bots/tasks.json
index 1ebc8c3..a5dca04 100644
--- a/infra/bots/tasks.json
+++ b/infra/bots/tasks.json
@@ -401,6 +401,12 @@
         "Build-Win-Clang-x86_64-Debug-ANGLE"
       ]
     },
+    "Build-Win-Clang-x86_64-Debug-Goma": {
+      "priority": 0.8,
+      "tasks": [
+        "Build-Win-Clang-x86_64-Debug-Goma"
+      ]
+    },
     "Build-Win-Clang-x86_64-Debug-Vulkan": {
       "priority": 0.8,
       "tasks": [
@@ -4785,6 +4791,39 @@
       "isolate": "compile_skia.isolate",
       "priority": 0.8
     },
+    "Build-Win-Clang-x86_64-Debug-Goma": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/clang_win",
+          "path": "clang_win",
+          "version": "version:2"
+        }
+      ],
+      "dependencies": [
+        "Housekeeper-PerCommit-IsolateWinToolchain"
+      ],
+      "dimensions": [
+        "cpu:x86-64-Haswell_GCE",
+        "gpu:none",
+        "os:Windows-2016Server-14393",
+        "pool:Skia"
+      ],
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "compile",
+        "repository=<(REPO)",
+        "buildername=Build-Win-Clang-x86_64-Debug-Goma",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "isolate": "compile_skia.isolate",
+      "priority": 0.8
+    },
     "Build-Win-Clang-x86_64-Debug-Vulkan": {
       "cipd_packages": [
         {