Refactor extension app icon.

chrome/browser/extensions/BUILD.gn

Index: chrome/browser/extensions/BUILD.gn
diff --git a/chrome/browser/extensions/BUILD.gn b/chrome/browser/extensions/BUILD.gn
index a2494bffe2f20c324114372bdf9211b2483d64fb..7ac9d43ed6319f7b18f9409716bd0f1286bae463 100644
--- a/chrome/browser/extensions/BUILD.gn
+++ b/chrome/browser/extensions/BUILD.gn
@@ -464,6 +464,15 @@ static_library("extensions") {
     "browser_context_keyed_service_factories.h",
     "browser_extension_window_controller.cc",
     "browser_extension_window_controller.h",
+    "chrome_app_icon.cc",
+    "chrome_app_icon.h",
+    "chrome_app_icon_delegate.h",
+    "chrome_app_icon_loader.cc",
+    "chrome_app_icon_loader.h",
+    "chrome_app_icon_service.cc",
+    "chrome_app_icon_service.h",
+    "chrome_app_icon_service_factory.cc",
+    "chrome_app_icon_service_factory.h",
     "chrome_app_sorting.cc",
     "chrome_app_sorting.h",
     "chrome_component_extension_resource_manager.cc",
@@ -537,8 +546,6 @@ static_library("extensions") {
     "extension_action_runner.h",
     "extension_action_storage_manager.cc",
     "extension_action_storage_manager.h",
-    "extension_app_icon_loader.cc",
-    "extension_app_icon_loader.h",
     "extension_assets_manager.cc",
     "extension_assets_manager.h",
     "extension_assets_manager_chromeos.cc",