Update chrome/ to use WeakPtr<T>::get() instead of implicit "operator T*"

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 58 matching lines @@
     callback_.Run(kRendererDestroyed, -1, GURL(std::string()), val);
     delete this;
   }
 
  private:
   void OnExecuteCodeFinished(int request_id,
                              const std::string& error,
                              int32 on_page_id,
                              const GURL& on_url,
                              const base::ListValue& script_result) {
-    if (script_observers_ && error.empty()) {
+    if (script_observers_.get() && error.empty()) {
       TabHelper::ScriptExecutionObserver::ExecutingScriptsMap id_map;
       id_map[extension_id_] = std::set<std::string>();
       FOR_EACH_OBSERVER(TabHelper::ScriptExecutionObserver, *script_observers_,
                         OnScriptsExecuted(web_contents(),
                                           id_map,
                                           on_page_id,
                                           on_url));
     }
 
     callback_.Run(error, on_page_id, on_url, script_result);
@@ skipping 35 matching lines @@
   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;
 
   // Handler handles IPCs and deletes itself on completion.
   new Handler(script_observers_, web_contents_, params, callback);
 }
 
 }  // namespace extensions