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

chrome/browser/tab_contents/spelling_menu_observer_browsertest.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/tab_contents/spelling_menu_observer.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
@@ skipping 207 matching lines @@
   void Reset(bool incognito) {
     observer_.reset();
     menu_.reset(new MockRenderViewContextMenu(incognito));
     observer_.reset(new SpellingMenuObserver(menu_.get()));
     menu_->SetObserver(observer_.get());
   }
 
   void InitMenu(const char* word, const char* suggestion) {
     content::ContextMenuParams params;
     params.is_editable = true;
-    params.misspelled_word = ASCIIToUTF16(word);
+    params.misspelled_word = base::ASCIIToUTF16(word);
     params.dictionary_suggestions.clear();
     if (suggestion)
-      params.dictionary_suggestions.push_back(ASCIIToUTF16(suggestion));
+      params.dictionary_suggestions.push_back(base::ASCIIToUTF16(suggestion));
     observer_->InitMenu(params);
   }
 
   virtual ~SpellingMenuObserverTest();
   MockRenderViewContextMenu* menu() { return menu_.get(); }
   SpellingMenuObserver* observer() { return observer_.get(); }
  private:
   scoped_ptr<SpellingMenuObserver> observer_;
   scoped_ptr<MockRenderViewContextMenu> menu_;
   DISALLOW_COPY_AND_ASSIGN(SpellingMenuObserverTest);
@@ skipping 230 matching lines @@
   command_line->AppendSwitch(switches::kUseSpellingSuggestions);
   InitMenu("asdfkj", NULL);
 
   // Should have at least 2 entries. Separator, suggestion.
   EXPECT_LT(2U, menu()->GetMenuSize());
   menu()->GetMenuItem(0, &item);
   EXPECT_EQ(-1, item.command_id);
   menu()->GetMenuItem(1, &item);
   EXPECT_EQ(IDC_CONTENT_CONTEXT_SPELLING_SUGGESTION, item.command_id);
 }