Remove log filtering and add stringsetflag.

common/logging/gologger/logger.go

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package gologger
 
 import (
         "bytes"
         "fmt"
         "strings"
@@ skipping 63 matching lines @@
         case logging.Error:
                 li.l.Error(format, args...)
         }
 }
 
 // formatWithFields renders the supplied format string, adding fields.
 //
 // '%' characters in the fields string are escaped so they can't be interpreted
 // as format characters when appended to the initial format string.
 func formatWithFields(format string, fields logging.Fields, args []interface{}) string {
-        fieldString := strings.Replace(fields.FieldString(true), "%", "%%", -1)
+        fieldString := strings.Replace(fields.String(), "%", "%%", -1)
 
         buf := bytes.Buffer{}
         buf.Grow(len(format) + logMessageFieldPadding + len(fieldString))
         fmt.Fprintf(&buf, format, args...)
 
         padding := 44 - buf.Len()
         if padding < 1 {
                 padding = 1
         }
         for i := 0; i < padding; i++ {
                 buf.WriteString(" ")
         }
         buf.WriteString(fieldString)
         return buf.String()
 }