Make GetURLForDebugging return a const GURL

chrome/common/security_filter_peer.cc

 // Copyright (c) 2009 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/common/security_filter_peer.h"
 
 #include "app/gfx/codec/png_codec.h"
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/gfx/size.h"
@@ skipping 108 matching lines @@
 
 void SecurityFilterPeer::OnReceivedData(const char* data, int len) {
   NOTREACHED();
 }
 
 void SecurityFilterPeer::OnCompletedRequest(const URLRequestStatus& status,
                                             const std::string& security_info) {
   NOTREACHED();
 }
 
-std::string SecurityFilterPeer::GetURLForDebugging() {
+GURL SecurityFilterPeer::GetURLForDebugging() const {
   return original_peer_->GetURLForDebugging();
 }
 
 // static
 void ProcessResponseInfo(
     const webkit_glue::ResourceLoaderBridge::ResponseInfo& info_in,
     webkit_glue::ResourceLoaderBridge::ResponseInfo* info_out,
     const std::string& mime_type) {
   DCHECK(info_out);
   *info_out = info_in;
@@ skipping 175 matching lines @@
     return false;
   }
 
   // Copy the vector content to data_ which is a string.
   data_.clear();
   data_.resize(output.size());
   std::copy(output.begin(), output.end(), data_.begin());
 
   return true;
 }