Run clang-modernize -use-nullptr over src/extensions/.

extensions/renderer/user_script_set.cc

 // Copyright 2014 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 "extensions/renderer/user_script_set.h"
 
 #include "content/public/common/url_constants.h"
 #include "content/public/renderer/render_thread.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_set.h"
@@ skipping 104 matching lines @@
   scripts_.clear();
   scripts_.reserve(num_scripts);
   for (uint64 i = 0; i < num_scripts; ++i) {
     scoped_ptr<UserScript> script(new UserScript());
     script->Unpickle(pickle, &iter);
 
     // Note that this is a pointer into shared memory. We don't own it. It gets
     // cleared up when the last renderer or browser process drops their
     // reference to the shared memory.
     for (size_t j = 0; j < script->js_scripts().size(); ++j) {
-      const char* body = NULL;
+      const char* body = nullptr;
       int body_length = 0;
       CHECK(pickle.ReadData(&iter, &body, &body_length));
       script->js_scripts()[j].set_external_content(
           base::StringPiece(body, body_length));
     }
     for (size_t j = 0; j < script->css_scripts().size(); ++j) {
-      const char* body = NULL;
+      const char* body = nullptr;
       int body_length = 0;
       CHECK(pickle.ReadData(&iter, &body, &body_length));
       script->css_scripts()[j].set_external_content(
           base::StringPiece(body, body_length));
     }
 
     if (only_inject_incognito && !script->is_incognito_enabled())
       continue;  // This script shouldn't run in an incognito tab.
 
     scripts_.push_back(script.release());
@@ skipping 67 matching lines @@
         injector.Pass(),
         web_frame,
         extension->id(),
         run_location,
         tab_id));
   }
   return injection.Pass();
 }
 
 }  // namespace extensions