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

chrome/test/chromedriver/util.cc

Index: chrome/test/chromedriver/util.cc
diff --git a/chrome/test/chromedriver/util.cc b/chrome/test/chromedriver/util.cc
index 454949e79e58c02e4368568867116667b30b9e89..911de01bae9ba902ccb80b9ffad41173ba7a57ef 100644
--- a/chrome/test/chromedriver/util.cc
+++ b/chrome/test/chromedriver/util.cc
@@ -76,7 +76,7 @@ bool Base64Decode(const std::string& base64,
   // Some WebDriver client base64 encoders follow RFC 1521, which require that
   // 'encoded lines be no more than 76 characters long'. Just remove any
   // newlines.
-  RemoveChars(copy, "\n", &copy);
+  base::RemoveChars(copy, "\n", &copy);
   return base::Base64Decode(copy, bytes);
 }