Compilation broken with debug_devtools after r194605

chrome/browser/ui/webui/devtools_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/devtools_ui.h"
 
 #include <string>
 
 #include "base/memory/ref_counted_memory.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 158 matching lines @@
 };
 
 #if defined(DEBUG_DEVTOOLS)
 class LocalhostDataSource : public content::URLDataSource {
  public:
   explicit LocalhostDataSource(net::URLRequestContextGetter*
       request_context) : request_context_(request_context) {
   }
 
   // content::URLDataSource implementation.
-  virtual std::string GetSource() OVERRIDE {
+  virtual std::string GetSource() const OVERRIDE {
     return "localhost";
   }
 
   virtual void StartDataRequest(
       const std::string& path,
       bool is_incognito,
       const content::URLDataSource::GotDataCallback& callback) OVERRIDE {
 
     GURL url = GURL("http://localhost:9222/" + path);
     new FetchRequest(request_context_, url, callback);
@@ skipping 42 matching lines @@
       new BundledDataSource());
   content::URLDataSource::Add(
       profile,
       new RemoteDataSource(profile->GetRequestContext()));
 #if defined(DEBUG_DEVTOOLS)
   content::URLDataSource::Add(
       profile,
       new LocalhostDataSource(profile->GetRequestContext()));
 #endif  // defined(DEBUG_DEVTOOLS)
 }