[gn] Forward the 'pool' parameter through dart actions

Related: https://github.com/flutter/flutter/issues/86946

Change-Id: Ie33c93a76d6107760655a7769c6541222e169c75
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/208060
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Zach Anderson <zra@google.com>

build/dart/dart_action.gni

@@ -51,6 +51,10 @@ template("_compiled_action") {
       testonly = invoker.testonly
     }
 
+    if (defined(invoker.pool)) {
+      pool = invoker.pool
+    }
+
     script = "$_dart_root/build/gn_run_binary.py"
 
     if (defined(invoker.inputs)) {
@@ -109,6 +113,7 @@ template("_prebuilt_tool_action") {
                              "depfile",
                              "deps",
                              "outputs",
+                             "pool",
                              "testonly",
                              "visibility",
                            ])
@@ -256,6 +261,7 @@ template("_built_tool_action") {
                              "deps",
                              "inputs",
                              "outputs",
+                             "pool",
                              "tool",
                              "testonly",
                              "visibility",
@@ -321,6 +327,7 @@ template("dart_action") {
                                "inputs",
                                "outputs",
                                "packages",
+                               "pool",
                                "script",
                                "testonly",
                                "tool",
@@ -380,6 +387,7 @@ template("gen_snapshot_action") {
                                "inputs",
                                "outputs",
                                "packages",
+                               "pool",
                                "testonly",
                                "tool",
                                "visibility",

utils/application_snapshot.gni

@@ -82,6 +82,9 @@ template("_application_snapshot") {
   # Build the kernel file using the prebuilt VM to speed up the debug and
   # simulator builds.
   prebuilt_dart_action(target_name + "_dill") {
+    if (defined(invoker.pool)) {
+      pool = invoker.pool
+    }
     deps = extra_deps + [
              "$_dart_root/runtime/vm:kernel_platform_files($host_toolchain)",
              "$_dart_root/runtime/vm:vm_platform",
@@ -131,6 +134,9 @@ template("_application_snapshot") {
 
   # Create a snapshot from kernel built above.
   dart_action(target_name) {
+    if (defined(invoker.pool)) {
+      pool = invoker.pool
+    }
     deps = extra_deps + [ ":${target_name}_dill" ]
     depfile = "$output.d"
 

utils/compile_platform.gni

@@ -41,6 +41,9 @@ template("compile_platform") {
   }
 
   prebuilt_dart_action(target_name) {
+    if (defined(invoker.pool)) {
+      pool = invoker.pool
+    }
     script = "$_dart_root/pkg/front_end/tool/_fasta/compile_platform.dart"
 
     packages = "$_dart_root/.packages"