Use a direct include of utf_string_conversions.h in chrome/browser/, part 2.

BUG=none
TEST=none
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Review URL: https://chromiumcodereview.appspot.com/16561007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@204977 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/extensions/extension_service_unittest.cc b/chrome/browser/extensions/extension_service_unittest.cc
index 323dad9..37056cc 100644
--- a/chrome/browser/extensions/extension_service_unittest.cc
+++ b/chrome/browser/extensions/extension_service_unittest.cc
@@ -25,7 +25,7 @@
 #include "base/string16.h"
 #include "base/string_util.h"
 #include "base/strings/string_number_conversions.h"
-#include "base/utf_string_conversions.h"
+#include "base/strings/utf_string_conversions.h"
 #include "base/version.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/app_sync_data.h"