Make URLDataSource::GetSource() const.

chrome/browser/ui/webui/about_ui.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/webui/about_ui.h"
 
 #include <algorithm>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 948 matching lines @@
 
 // AboutUIHTMLSource ----------------------------------------------------------
 
 AboutUIHTMLSource::AboutUIHTMLSource(const std::string& source_name,
                                      Profile* profile)
     : source_name_(source_name),
       profile_(profile) {}
 
 AboutUIHTMLSource::~AboutUIHTMLSource() {}
 
-std::string AboutUIHTMLSource::GetSource() {
+std::string AboutUIHTMLSource::GetSource() const {
   return source_name_;
 }
 
 void AboutUIHTMLSource::StartDataRequest(
     const std::string& path,
     bool is_incognito,
     const content::URLDataSource::GotDataCallback& callback) {
   std::string response;
   // Add your data source here, in alphabetical order.
   if (source_name_ == chrome::kChromeUIChromeURLsHost) {
@@ skipping 87 matching lines @@
   Profile* profile = Profile::FromWebUI(web_ui);
 
 #if defined(ENABLE_THEMES)
   // Set up the chrome://theme/ source.
   ThemeSource* theme = new ThemeSource(profile);
   content::URLDataSource::Add(profile, theme);
 #endif
 
   content::URLDataSource::Add(profile, new AboutUIHTMLSource(name, profile));
 }