Add gn template for vector icon actions.

components/toolbar/BUILD.gn

Index: components/toolbar/BUILD.gn
diff --git a/components/toolbar/BUILD.gn b/components/toolbar/BUILD.gn
index ec98fd48a0367ddeb35c80f8e3d55a9a91d01e2d..08478b45ae46d08282de45a3fcc834e623417880 100644
--- a/components/toolbar/BUILD.gn
+++ b/components/toolbar/BUILD.gn
@@ -3,50 +3,27 @@
 # found in the LICENSE file.
 
 import("//build/config/ui.gni")
+import("//ui/vector_icons/vector_icons.gni")
 
-action("aggregate_vector_icons") {
-  visibility = [ ":*" ]
-
-  script = "//ui/gfx/vector_icons/aggregate_vector_icons.py"
+aggregate_vector_icons("toolbar_vector_icons") {
+  icon_directory = "vector_icons"
 
   icons = [
     # TODO(estade): this is the same as ui/gfx/vector_icons/business.icon. Use
     # that one instead once it's been updated from VectorIconId to VectorIcon.
-    "vector_icons/business.icon",
-    "vector_icons/http.1x.icon",
-    "vector_icons/http.icon",
-    "vector_icons/https_invalid.1x.icon",
-    "vector_icons/https_invalid.icon",
-    "vector_icons/https_valid.1x.icon",
-    "vector_icons/https_valid.icon",
-    "vector_icons/https_valid_in_chip.1x.icon",
-    "vector_icons/https_valid_in_chip.icon",
-    "vector_icons/product.1x.icon",
-    "vector_icons/product.icon",
-    "vector_icons/star_active.icon",
-    "vector_icons/star.icon",
-  ]
-
-  output_cc = "$target_gen_dir/vector_icons.cc"
-  output_h = "$target_gen_dir/vector_icons.h"
-
-  inputs = icons
-  inputs += [
-    "vector_icons/vector_icons.cc.template",
-    "vector_icons/vector_icons.h.template",
-  ]
-  outputs = [
-    output_cc,
-    output_h,
-  ]
-
-  response_file_contents = rebase_path(icons, root_build_dir)
-
-  args = [
-    "--working_directory=" + rebase_path("./vector_icons"),
-    "--file_list={{response_file_name}}",
-    "--output_cc=" + rebase_path(output_cc, root_build_dir),
-    "--output_h=" + rebase_path(output_h, root_build_dir),
+    "business.icon",
+    "http.1x.icon",
+    "http.icon",
+    "https_invalid.1x.icon",
+    "https_invalid.icon",
+    "https_valid.1x.icon",
+    "https_valid.icon",
+    "https_valid_in_chip.1x.icon",
+    "https_valid_in_chip.icon",
+    "product.1x.icon",
+    "product.icon",
+    "star_active.icon",
+    "star.icon",
   ]
 }
 
@@ -73,8 +50,8 @@ static_library("toolbar") {
   ]
 
   if (!is_android && !is_ios) {
-    sources += get_target_outputs(":aggregate_vector_icons")
-    deps += [ ":aggregate_vector_icons" ]
+    sources += get_target_outputs(":toolbar_vector_icons")
+    deps += [ ":toolbar_vector_icons" ]
   }
 }