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

chrome/browser/extensions/script_executor.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/script_executor.h"
 
 #include "base/callback.h"
 #include "base/logging.h"
 #include "base/pickle.h"
 #include "chrome/common/extensions/extension_messages.h"
@@ skipping 97 matching lines @@
 
 ScriptExecutor::~ScriptExecutor() {}
 
 void ScriptExecutor::ExecuteScript(
     const std::string& extension_id,
     ScriptExecutor::ScriptType script_type,
     const std::string& code,
     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_++;
   params.extension_id = extension_id;
   params.is_javascript = (script_type == JAVASCRIPT);
   params.code = code;
   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);
 }
 
 }  // namespace extensions