Revert of Add ARC++ specific fields to launch data for specific apps.

extensions/browser/api/app_runtime/app_runtime_api.h

Index: extensions/browser/api/app_runtime/app_runtime_api.h
diff --git a/extensions/browser/api/app_runtime/app_runtime_api.h b/extensions/browser/api/app_runtime/app_runtime_api.h
index 35ef3ed4e4e66b1c4b3c7484f463731402721062..99a55dea4fded8ed598cad3562d3e0e5ac47e3f7 100644
--- a/extensions/browser/api/app_runtime/app_runtime_api.h
+++ b/extensions/browser/api/app_runtime/app_runtime_api.h
@@ -27,7 +27,6 @@
 namespace api {
 namespace app_runtime {
 struct ActionData;
-struct LaunchData;
 }
 }
 
@@ -48,7 +47,7 @@
       content::BrowserContext* context,
       const Extension* extension,
       AppLaunchSource source,
-      std::unique_ptr<api::app_runtime::LaunchData> launch_data);
+      std::unique_ptr<api::app_runtime::ActionData> action_data);
 
   // Dispatches the onRestarted event to the given app, providing a list of
   // restored file entries from the previous run.