Remove UTF string conversion functions from the global namespace.

ui/views/view_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 <map>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/rand_util.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 24 matching lines @@
 #include "ui/views/window/dialog_delegate.h"
 
 #if defined(OS_WIN)
 #include "ui/views/test/test_views_delegate.h"
 #endif
 #if defined(USE_AURA)
 #include "ui/aura/root_window.h"
 #include "ui/events/gestures/gesture_recognizer.h"
 #endif
 
+using base::ASCIIToUTF16;
+
 namespace {
 
 // Returns true if |ancestor| is an ancestor of |layer|.
 bool LayerIsAncestor(const ui::Layer* ancestor, const ui::Layer* layer) {
   while (layer && layer != ancestor)
     layer = layer->parent();
   return layer == ancestor;
 }
 
 // Convenience functions for walking a View tree.
@@ skipping 3509 matching lines @@
   const std::vector<ui::Layer*>& child_layers_post = root_layer->children();
   ASSERT_EQ(3u, child_layers_post.size());
   EXPECT_EQ(v1->layer(), child_layers_post[0]);
   EXPECT_EQ(v2->layer(), child_layers_post[1]);
   EXPECT_EQ(v1_old_layer, child_layers_post[2]);
 }
 
 #endif  // USE_AURA
 
 }  // namespace views