[inspector] Add swarming support to inspector tests

gni/isolate.gni

Index: gni/isolate.gni
diff --git a/gni/isolate.gni b/gni/isolate.gni
index 93c828d2cdf0fb70efaaf91cb9a457b2b846dbbc..94154718a32d3119c291d032eee6322eefef1b47 100644
--- a/gni/isolate.gni
+++ b/gni/isolate.gni
@@ -3,6 +3,7 @@
 # found in the LICENSE file.
 
 import("//build/config/sanitizers/sanitizers.gni")
+import("//build_overrides/v8.gni")
 import("//third_party/icu/config.gni")
 import("v8.gni")
 
@@ -86,6 +87,11 @@ template("v8_isolate_run") {
       } else {
         icu_use_data_file_flag = "0"
       }
+      if (v8_enable_inspector_override) {
+        enable_inspector = "1"
+      } else {
+        enable_inspector = "0"
+      }
       if (v8_use_external_startup_data) {
         use_external_startup_data = "1"
       } else {
@@ -107,7 +113,6 @@ template("v8_isolate_run") {
         gcmole = "0"
       }
 
-
       # Note, all paths will be rebased in isolate_driver.py to be relative to
       # the isolate file.
       args = [
@@ -142,6 +147,8 @@ template("v8_isolate_run") {
         "--config-variable",
         "icu_use_data_file_flag=$icu_use_data_file_flag",
         "--config-variable",
+        "is_gn=1",
+        "--config-variable",
         "msan=$msan",
         "--config-variable",
         "tsan=$tsan",
@@ -154,6 +161,8 @@ template("v8_isolate_run") {
         "--config-variable",
         "target_arch=$target_arch",
         "--config-variable",
+        "v8_enable_inspector=$enable_inspector",
+        "--config-variable",
         "v8_use_external_startup_data=$use_external_startup_data",
         "--config-variable",
         "v8_use_snapshot=$use_snapshot",