Make URLDataSource::GetSource() const.

chrome/browser/ui/webui/chromeos/system_info_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/chromeos/system_info_ui.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 30 matching lines @@
 using content::WebContents;
 using content::WebUIMessageHandler;
 
 namespace chromeos {
 
 class SystemInfoUIHTMLSource : public content::URLDataSource{
  public:
   SystemInfoUIHTMLSource();
 
   // content::URLDataSource implementation.
-  virtual std::string GetSource() OVERRIDE;
+  virtual std::string GetSource() const OVERRIDE;
   virtual void StartDataRequest(
       const std::string& path,
       bool is_incognito,
       const content::URLDataSource::GotDataCallback& callback) OVERRIDE;
   virtual std::string GetMimeType(const std::string&) const OVERRIDE {
     return "text/html";
   }
   virtual bool ShouldAddContentSecurityPolicy() const OVERRIDE {
     return false;
   }
@@ skipping 32 matching lines @@
 //
 // SystemInfoUIHTMLSource
 //
 ////////////////////////////////////////////////////////////////////////////////
 
 SystemInfoUIHTMLSource::SystemInfoUIHTMLSource()
     : response_(NULL),
       ALLOW_THIS_IN_INITIALIZER_LIST(weak_ptr_factory_(this)) {
 }
 
-std::string SystemInfoUIHTMLSource::GetSource() {
+std::string SystemInfoUIHTMLSource::GetSource() const {
   return chrome::kChromeUISystemInfoHost;
 }
 
 void SystemInfoUIHTMLSource::StartDataRequest(
     const std::string& path,
     bool is_incognito,
     const content::URLDataSource::GotDataCallback& callback) {
   path_ = path;
   callback_ = callback;
 
@@ skipping 71 matching lines @@
   SystemInfoHandler* handler = new SystemInfoHandler();
   web_ui->AddMessageHandler(handler);
   SystemInfoUIHTMLSource* html_source = new SystemInfoUIHTMLSource();
 
   // Set up the chrome://system/ source.
   Profile* profile = Profile::FromWebUI(web_ui);
   content::URLDataSource::Add(profile, html_source);
 }
 
 }  // namespace chromeos