Make URLDataSource::GetSource() const.

chrome/browser/ui/webui/options/options_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/options/options_ui.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/callback.h"
@@ skipping 93 matching lines @@
 // OptionsUIHTMLSource
 //
 ////////////////////////////////////////////////////////////////////////////////
 
 class OptionsUIHTMLSource : public content::URLDataSource {
  public:
   // The constructor takes over ownership of |localized_strings|.
   explicit OptionsUIHTMLSource(DictionaryValue* localized_strings);
 
   // 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;
   virtual bool ShouldDenyXFrameOptions() const OVERRIDE;
 
  private:
   virtual ~OptionsUIHTMLSource();
 
   // Localized strings collection.
   scoped_ptr<DictionaryValue> localized_strings_;
 
   DISALLOW_COPY_AND_ASSIGN(OptionsUIHTMLSource);
 };
 
 OptionsUIHTMLSource::OptionsUIHTMLSource(DictionaryValue* localized_strings) {
   DCHECK(localized_strings);
   localized_strings_.reset(localized_strings);
 }
 
-std::string OptionsUIHTMLSource::GetSource() {
+std::string OptionsUIHTMLSource::GetSource() const {
   return chrome::kChromeUISettingsFrameHost;
 }
 
 void OptionsUIHTMLSource::StartDataRequest(
     const std::string& path,
     bool is_incognito,
     const content::URLDataSource::GotDataCallback& callback) {
   scoped_refptr<base::RefCountedMemory> response_bytes;
   webui::SetFontAndTextDirection(localized_strings_.get());
 
@@ skipping 276 matching lines @@
   // Add only if handler's service is enabled.
   if (handler->IsEnabled()) {
     // Add handler to the list and also pass the ownership.
     web_ui()->AddMessageHandler(handler.release());
     handler_raw->GetLocalizedValues(localized_strings);
     handlers_.push_back(handler_raw);
   }
 }
 
 }  // namespace options