Move DNS functions from net_error_info.h into error_page namespace.

components/error_page/common/net_error_info.h

 // Copyright (c) 2013 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.
 
 #ifndef COMPONENTS_ERROR_PAGE_COMMON_NET_ERROR_INFO_H_
 #define COMPONENTS_ERROR_PAGE_COMMON_NET_ERROR_INFO_H_
 
 // TODO(hashimoto): Change this to namespace error_page.
 namespace chrome_common_net {
 
 // Network error page events.  Used for UMA statistics.
 enum NetworkErrorPageEvent {

[tfarina, 2015/08/10 18:18:59]

I'd like to do this in a follow up.

   NETWORK_ERROR_PAGE_SHOWN = 0,                    // Error pages shown.
 
   NETWORK_ERROR_PAGE_RELOAD_BUTTON_SHOWN = 1,      // Reload buttons shown.
   NETWORK_ERROR_PAGE_RELOAD_BUTTON_CLICKED = 2,    // Reload button clicked.
   NETWORK_ERROR_PAGE_RELOAD_BUTTON_ERROR = 3,      // Reload button clicked
                                                    // -> error.
 
   // Same for the "Show saved copy" button.
   NETWORK_ERROR_PAGE_SHOW_SAVED_COPY_BUTTON_SHOWN = 4,
   NETWORK_ERROR_PAGE_SHOW_SAVED_COPY_BUTTON_CLICKED = 5,
@@ skipping 53 matching lines @@
 
   // The DNS configuration is wrong, or the servers are down or broken.
   DNS_PROBE_FINISHED_BAD_CONFIG,
 
   // The DNS servers are working fine, so the domain must not exist.
   DNS_PROBE_FINISHED_NXDOMAIN,
 
   DNS_PROBE_MAX
 };
 
+}  // namespace chrome_common_net
+
+namespace error_page {
+
 // Returns a string representing |status|.  It should be simply the name of
 // the value as a string, but don't rely on that.  This is presented to the
 // user as part of the DNS error page (as the error code, at the bottom),
 // and is also used in some verbose log messages.
 //
 // The function will NOTREACHED() and return an empty string if given an int
 // that does not match a value in DnsProbeStatus (or if it is DNS_PROBE_MAX,
 // which is not a real status).
 const char* DnsProbeStatusToString(int status);
 
 // Returns true if |status| is one of the DNS_PROBE_FINISHED_* statuses.
-bool DnsProbeStatusIsFinished(DnsProbeStatus status);
+bool DnsProbeStatusIsFinished(chrome_common_net::DnsProbeStatus status);
 
 // Record specific error page events.
-void RecordEvent(NetworkErrorPageEvent event);
+void RecordEvent(chrome_common_net::NetworkErrorPageEvent event);
 
 // The error domain used to pass DNS probe statuses to the localized error
 // code.
 extern const char kDnsProbeErrorDomain[];
 
-}  // namespace chrome_common_net
+}  // namespace error_page
 
 #endif  // COMPONENTS_ERROR_PAGE_COMMON_NET_ERROR_INFO_H_