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

chrome/browser/ui/find_bar/find_backend_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 "base/strings/string16.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/ui/find_bar/find_bar_state.h"
 #include "chrome/browser/ui/find_bar/find_bar_state_factory.h"
 #include "chrome/browser/ui/find_bar/find_tab_helper.h"
@@ skipping 38 matching lines @@
   FindTabHelper::CreateForWebContents(contents2.get());
   FindTabHelper* find_tab_helper2 =
       FindTabHelper::FromWebContents(contents2.get());
 
   // No search has still been issued, strings should be blank.
   EXPECT_EQ(base::string16(), FindPrepopulateText(web_contents()));
   EXPECT_EQ(base::string16(), find_tab_helper->find_text());
   EXPECT_EQ(base::string16(), FindPrepopulateText(contents2.get()));
   EXPECT_EQ(base::string16(), find_tab_helper2->find_text());
 
-  base::string16 search_term1 = ASCIIToUTF16(" I had a 401K    ");
-  base::string16 search_term2 = ASCIIToUTF16(" but the economy ");
-  base::string16 search_term3 = ASCIIToUTF16(" eated it.       ");
+  base::string16 search_term1 = base::ASCIIToUTF16(" I had a 401K    ");
+  base::string16 search_term2 = base::ASCIIToUTF16(" but the economy ");
+  base::string16 search_term3 = base::ASCIIToUTF16(" eated it.       ");
 
   // Start searching in the first WebContents, searching forwards but not case
   // sensitive (as indicated by the last two params).
   find_tab_helper->StartFinding(search_term1, true, false);
 
   // Pre-populate string should always match between the two, but find_text
   // should not.
   EXPECT_EQ(search_term1, FindPrepopulateText(web_contents()));
   EXPECT_EQ(search_term1, find_tab_helper->find_text());
   EXPECT_EQ(search_term1, FindPrepopulateText(contents2.get()));
@@ skipping 14 matching lines @@
   // find_tab_helper (as indicated by the last two params).
   find_tab_helper->StartFinding(search_term3, true, false);
 
   // Once more, pre-populate string should always match between the two, but
   // find_text should not.
   EXPECT_EQ(search_term3, FindPrepopulateText(web_contents()));
   EXPECT_EQ(search_term3, find_tab_helper->find_text());
   EXPECT_EQ(search_term3, FindPrepopulateText(contents2.get()));
   EXPECT_EQ(search_term2, find_tab_helper2->find_text());
 }