Update uses of UTF conversions in content/ to use the base:: namespace.

content/common/mac/font_descriptor_unittest.mm

 // Copyright (c) 2011 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 "content/common/mac/font_descriptor.h"
 
 #include <Cocoa/Cocoa.h>
 
 #include "base/logging.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 52 matching lines @@
         << " are different";
         return false;
   }
 
   return true;
 }
 
 // Create an NSFont via a FontDescriptor object.
 NSFont* MakeNSFont(const std::string& font_name, float font_point_size) {
   FontDescriptor desc;
-  desc.font_name = UTF8ToUTF16(font_name);
+  desc.font_name = base::UTF8ToUTF16(font_name);
   desc.font_point_size = font_point_size;
   return desc.ToNSFont();
 }
 
 // Verify that serialization and deserialization of fonts with various styles
 // is performed correctly by FontDescriptor.
 TEST_F(FontSerializationTest, StyledFonts) {
   NSFont* plain_font = [NSFont systemFontOfSize:12.0];
   ASSERT_TRUE(plain_font != nil);
   FontDescriptor desc_plain(plain_font);
@@ skipping 21 matching lines @@
 TEST_F(FontSerializationTest, BadParameters) {
   EXPECT_NSNE(MakeNSFont(kCourierFontName, 12), nil);
   EXPECT_NSNE(MakeNSFont(kCourierFontName, std::numeric_limits<float>::min()),
               nil);
   EXPECT_NSNE(MakeNSFont(kCourierFontName, 0), nil);
   EXPECT_NSNE(MakeNSFont(kCourierFontName, std::numeric_limits<float>::max()),
               nil);
 }
 
 }  // namespace