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

chrome/common/localized_error.cc

Index: chrome/common/localized_error.cc
diff --git a/chrome/common/localized_error.cc b/chrome/common/localized_error.cc
index 67cdca1fb5d8ee17043d4cdc0d46a5fe37359cc2..132ae38b02ec28e77c83cb8fddfa66d7da4fefa0 100644
--- a/chrome/common/localized_error.cc
+++ b/chrome/common/localized_error.cc
@@ -574,7 +574,7 @@ void LocalizedError::GetStrings(int error_code,
     // Non-internationalized error string, for debugging Chrome itself.
     std::string ascii_error_string = net::ErrorToString(error_code);
     // Remove the leading "net::" from the returned string.
-    RemoveChars(ascii_error_string, "net:", &ascii_error_string);
+    base::RemoveChars(ascii_error_string, "net:", &ascii_error_string);
     error_string = ASCIIToUTF16(ascii_error_string);
   } else if (error_domain == chrome_common_net::kDnsProbeErrorDomain) {
     std::string ascii_error_string =