Move RemoveChars, ReplaceChars, TrimString, and TruncateUTF8ToByteSize to base namespace.

sync/engine/commit_util.cc

Index: sync/engine/commit_util.cc
diff --git a/sync/engine/commit_util.cc b/sync/engine/commit_util.cc
index 701e33532b87c61956f4a5debe5905983293fd11..1081446b7a8a065b02cc42619a7ca71f83bd4889 100644
--- a/sync/engine/commit_util.cc
+++ b/sync/engine/commit_util.cc
@@ -105,7 +105,7 @@ void BuildCommitItem(
   // Note: Truncation is also performed in WriteNode::SetTitle(..). But this
   // call is still necessary to handle any title changes that might originate
   // elsewhere, or already be persisted in the directory.
-  TruncateUTF8ToByteSize(name, 255, &name);
+  base::TruncateUTF8ToByteSize(name, 255, &name);
   sync_entry->set_name(name);
 
   // Set the non_unique_name.  If we do, the server ignores