chrome 5: string_util.h -> utf_string_conversions.h fix.

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/671024

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@40963 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/history/snippet.cc b/chrome/browser/history/snippet.cc
index b44bb00e..95b66cd 100644
--- a/chrome/browser/history/snippet.cc
+++ b/chrome/browser/history/snippet.cc
@@ -9,6 +9,7 @@
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
 #include "base/string_util.h"
+#include "base/utf_string_conversions.h"
 #include "unicode/brkiter.h"
 #include "unicode/utext.h"
 #include "unicode/utf8.h"
@@ -60,8 +61,8 @@
       // coalesce matches after it.
       i->second = end;
       CoalescePositionsFrom(i - match_positions->begin(), match_positions);
-    } // else case, new pair completely contained in existing pair, nothing
-      // to do.
+    }  // else case, new pair completely contained in existing pair, nothing
+       // to do.
   } else if (i == match_positions->begin()) {
     // Match at the beginning and the first pair doesn't have the same
     // start. Insert new pair and coalesce matches after it.