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

chrome/browser/task_manager/task_manager_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/task_manager/task_manager.h"
 
 #include <string>
 
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/task_manager/resource_provider.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/image/image_skia.h"
 
+using base::ASCIIToUTF16;
+
 namespace {
 
 #if defined(OS_MACOSX)
 // From task_manager.cc:
 // Activity Monitor shows %cpu with one decimal digit -- be
 // consistent with that.
 const char* kZeroCPUUsage = "0.0";
 #else
 const char* kZeroCPUUsage = "0";
 #endif
@@ skipping 87 matching lines @@
   TaskManagerModel* model = task_manager.model_.get();
   TestResource resource;
 
   task_manager.AddResource(&resource);
   ASSERT_FALSE(resource.refresh_called());
   model->update_state_ = TaskManagerModel::TASK_PENDING;
   model->Refresh();
   ASSERT_TRUE(resource.refresh_called());
   task_manager.RemoveResource(&resource);
 }