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

chrome/browser/bookmarks/bookmark_model.cc

Index: chrome/browser/bookmarks/bookmark_model.cc
diff --git a/chrome/browser/bookmarks/bookmark_model.cc b/chrome/browser/bookmarks/bookmark_model.cc
index b44ee90cb96f7ac1023b9c5d013faaf928693322..433309e8e8002ba55a37f1fa58d2e8640ec5cdb2 100644
--- a/chrome/browser/bookmarks/bookmark_model.cc
+++ b/chrome/browser/bookmarks/bookmark_model.cc
@@ -74,7 +74,7 @@ void BookmarkNode::SetTitle(const string16& title) {
   // Replace newlines and other problematic whitespace characters in
   // folder/bookmark names with spaces.
   string16 trimmed_title;
-  ReplaceChars(title, kInvalidChars, ASCIIToUTF16(" "), &trimmed_title);
+  base::ReplaceChars(title, kInvalidChars, ASCIIToUTF16(" "), &trimmed_title);
   ui::TreeNode<BookmarkNode>::SetTitle(trimmed_title);
 }