[fuchsia] Use SDK provided gn templates for v8_unittests

cr_fuchsia_package is deprecated in favor of using the Fuchsia
SDK provided rules directly.

Bug: chromium:1092804
Change-Id: I86a59b6a717cb0aa8c3473e8410bdd98f0ffd042
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3537883Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Wez <wez@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Bryant Chandler <bryantchandler@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79763}

test/unittests/BUILD.gn

@@ -7,18 +7,24 @@ import("../../gni/v8.gni")
 if (is_fuchsia) {
   import("//build/config/fuchsia/rules.gni")
 
-  cr_fuchsia_package("v8_unittests_pkg") {
+  fuchsia_component("v8_unittests_component") {
     testonly = true
-    binary = ":unittests"
-    manifest = "../../gni/v8.cmx"
-    package_name_override = "v8_unittests"
+    manifest = "v8_unittests.cmx"
+    data_deps = [ ":unittests" ]
+    visibility = [ ":*" ]
+  }
+
+  fuchsia_package("v8_unittests_pkg") {
+    testonly = true
+    package_name = "v8_unittests"
+    deps = [ ":v8_unittests_component" ]
   }
 
   fuchsia_package_runner("v8_unittests_fuchsia") {
     testonly = true
     use_cfv2 = false
     package = ":v8_unittests_pkg"
-    package_name_override = "v8_unittests"
+    package_name = "v8_unittests"
   }
 }
 

test/unittests/v8_unittests.cmx

+{
+  "include": [
+    "build/config/fuchsia/test/minimum_capabilities.test-cmx",
+    "gni/v8.cmx"
+  ],
+  "program": {
+    "binary": "unittests"
+  }
+}
\ No newline at end of file