Update some uses of char16 to use the base:: namespace.

chrome/browser/autocomplete/autocomplete_match.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/autocomplete/autocomplete_match.h"
 
 #include "base/i18n/time_formatting.h"
 #include "base/logging.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 13 matching lines @@
   return classifications.empty() ||
       ((classifications.size() == 1) &&
        (classifications.back().style == ACMatchClassification::NONE));
 }
 
 }  // namespace
 
 // AutocompleteMatch ----------------------------------------------------------
 
 // static
-const char16 AutocompleteMatch::kInvalidChars[] = {
+const base::char16 AutocompleteMatch::kInvalidChars[] = {
   '\n', '\r', '\t',
   0x2028,  // Line separator
   0x2029,  // Paragraph separator
   0
 };
 
 AutocompleteMatch::AutocompleteMatch()
     : provider(NULL),
       relevance(0),
       typed_count(-1),
@@ skipping 445 matching lines @@
         << " is unsorted in relation to last offset of " << last_offset
         << ". Provider: " << provider_name << ".";
     DCHECK_LT(i->offset, text.length())
         << " Classification of [" << i->offset << "," << text.length()
         << "] is out of bounds for \"" << text << "\". Provider: "
         << provider_name << ".";
     last_offset = i->offset;
   }
 }
 #endif