EDK: Remove (direct) dependencies of //mojo/edk/system on //base/test.

mojo/edk/system/test/BUILD.gn

Index: mojo/edk/system/test/BUILD.gn
diff --git a/mojo/edk/system/test/BUILD.gn b/mojo/edk/system/test/BUILD.gn
index e91db656a8c9fab3a12e80a3bd5b1b4745c79b2e..d1d5f1a6acee45640fb4a3a047e347859a6fc5a2 100644
--- a/mojo/edk/system/test/BUILD.gn
+++ b/mojo/edk/system/test/BUILD.gn
@@ -4,8 +4,10 @@
 
 import("../../mojo_edk.gni")
 
+# Utilties for use by EDK internal (unit and perf) tests.
 mojo_edk_source_set("test") {
   testonly = true
+  mojo_edk_visibility = [ "mojo/edk/*" ]
 
   sources = [
     "random.cc",
@@ -32,6 +34,7 @@ mojo_edk_source_set("test") {
   deps = [
     "//base",
     "//base/test:test_support",
+    "//testing/gtest",
   ]
 
   mojo_edk_deps = [
@@ -40,6 +43,50 @@ mojo_edk_source_set("test") {
   ]
 }
 
+# Utilities for use by EDK internal perf tests (for use with
+# :run_all_perftests).
+mojo_edk_source_set("perf") {
+  testonly = true
+  mojo_edk_visibility = [ "mojo/edk/*" ]
+
+  sources = [
+    "perf_log.cc",
+    "perf_log.h",
+  ]
+
+  deps = [
+    "//base/test:test_support",
+  ]
+}
+
+mojo_edk_source_set("run_all_unittests") {
+  testonly = true
+  mojo_edk_visibility = [ "mojo/edk/*" ]
+
+  sources = [
+    "run_all_unittests.cc",
+  ]
+
+  deps = [
+    "//base",
+    "//base/test:test_support",
+    "//testing/gtest",
+  ]
+}
+
+mojo_edk_source_set("run_all_perftests") {
+  testonly = true
+  mojo_edk_visibility = [ "mojo/edk/*" ]
+
+  sources = [
+    "run_all_perftests.cc",
+  ]
+
+  deps = [
+    "//base/test:test_support",
+  ]
+}
+
 mojo_edk_source_set("unittests") {
   testonly = true
   mojo_edk_visibility = [ "mojo/edk/system:mojo_system_unittests" ]