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

chrome/browser/shell_integration_linux_unittest.cc

 // Copyright 2013 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/shell_integration_linux.h"
 
 #include <algorithm>
 #include <cstdlib>
 #include <map>
 
@@ skipping 555 matching lines @@
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_cases); i++) {
     SCOPED_TRACE(i);
     EXPECT_EQ(
         test_cases[i].expected_output,
         ShellIntegrationLinux::GetDesktopFileContents(
             kChromeExePath,
             web_app::GenerateApplicationNameFromURL(GURL(test_cases[i].url)),
             GURL(test_cases[i].url),
             std::string(),
             base::FilePath(),
-            ASCIIToUTF16(test_cases[i].title),
+            base::ASCIIToUTF16(test_cases[i].title),
             test_cases[i].icon_name,
             base::FilePath(),
             test_cases[i].nodisplay));
   }
 }
 
 TEST(ShellIntegrationTest, GetDirectoryFileContents) {
   const struct {
     const char* title;
     const char* icon_name;
@@ skipping 24 matching lines @@
       "Icon=chromium-browser\n"
 #endif
     },
   };
 
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_cases); i++) {
     SCOPED_TRACE(i);
     EXPECT_EQ(
         test_cases[i].expected_output,
         ShellIntegrationLinux::GetDirectoryFileContents(
-            ASCIIToUTF16(test_cases[i].title),
+            base::ASCIIToUTF16(test_cases[i].title),
             test_cases[i].icon_name));
   }
 }