Don't serialize extension user script injection results unless the extension

chrome/browser/extensions/script_executor.cc

Index: chrome/browser/extensions/script_executor.cc
diff --git a/chrome/browser/extensions/script_executor.cc b/chrome/browser/extensions/script_executor.cc
index 9e4aecdcc2cf660a1757262ab5ae9494cfddcb04..41ffd49eaaf0142583d8bb6ca47d449c50f8409a 100644
--- a/chrome/browser/extensions/script_executor.cc
+++ b/chrome/browser/extensions/script_executor.cc
@@ -115,7 +115,8 @@ void ScriptExecutor::ExecuteScript(
     ScriptExecutor::FrameScope frame_scope,
     UserScript::RunLocation run_at,
     ScriptExecutor::WorldType world_type,
-    bool is_web_view,
+    ScriptExecutor::ProcessType process_type,
+    ScriptExecutor::ResultType result_type,
     const ExecuteScriptCallback& callback) {
   ExtensionMsg_ExecuteCode_Params params;
   params.request_id = next_request_id_++;
@@ -125,7 +126,8 @@ void ScriptExecutor::ExecuteScript(
   params.all_frames = (frame_scope == ALL_FRAMES);
   params.run_at = static_cast<int>(run_at);
   params.in_main_world = (world_type == MAIN_WORLD);
-  params.is_web_view = is_web_view;
+  params.is_web_view = (process_type == WEB_VIEW_PROCESS);
+  params.wants_result = (result_type == JSON_SERIALIZED_RESULT);
 
   // Handler handles IPCs and deletes itself on completion.
   new Handler(script_observers_, web_contents_, params, callback);