Update some uses of UTF conversions in chrome/browser to use the base:: namespace.

chrome/browser/ui/bookmarks/bookmark_context_menu_controller_unittest.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/ui/bookmarks/bookmark_context_menu_controller.h"
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/bookmarks/bookmark_test_helpers.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/bookmarks/bookmark_utils.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/browser/page_navigator.h"
 #include "content/public/test/test_browser_thread.h"
 #include "grit/generated_resources.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/clipboard/clipboard.h"
 
+using base::ASCIIToUTF16;
 using content::BrowserThread;
 using content::OpenURLParams;
 using content::PageNavigator;
 using content::WebContents;
 
 // PageNavigator implementation that records the URL.
 class TestingPageNavigator : public PageNavigator {
  public:
   virtual WebContents* OpenURL(const OpenURLParams& params) OVERRIDE {
     urls_.push_back(params.url);
@@ skipping 290 matching lines @@
   ASSERT_EQ(bb_node->GetChild(0)->url(), bb_node->GetChild(1)->url());
 
   controller.reset(new BookmarkContextMenuController(
       NULL, NULL, NULL, profile_.get(), NULL, nodes[0]->parent(), nodes));
   // Cut the URL.
   controller->ExecuteCommand(IDC_CUT, 0);
   ASSERT_TRUE(bb_node->GetChild(0)->is_url());
   ASSERT_TRUE(bb_node->GetChild(1)->is_folder());
   ASSERT_EQ(old_count, bb_node->child_count());
 }