Use the suggested name from an anchor's 'download' attribute.

chrome/browser/download/download_item.cc

 // Copyright (c) 2011 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/download/download_item.h"
 
 #include "base/basictypes.h"
 #include "base/file_util.h"
 #include "base/format_macros.h"
 #include "base/i18n/case_conversion.h"
@@ skipping 144 matching lines @@
                            bool is_otr)
     : state_info_(info.original_name, info.save_info.file_path,
                   info.has_user_gesture, info.prompt_user_for_save_location,
                   info.path_uniquifier, false, false,
                   info.is_extension_install),
       request_handle_(info.request_handle),
       download_id_(info.download_id),
       full_path_(info.path),
       url_chain_(info.url_chain),
       referrer_url_(info.referrer_url),
+      suggested_filename_(UTF16ToUTF8(info.save_info.suggested_name)),
       content_disposition_(info.content_disposition),
       mime_type_(info.mime_type),
       original_mime_type_(info.original_mime_type),
       referrer_charset_(info.referrer_charset),
       total_bytes_(info.total_bytes),
       received_bytes_(0),
       last_os_error_(0),
       start_tick_(base::TimeTicks::Now()),
       state_(IN_PROGRESS),
       start_time_(info.start_time),
@@ skipping 682 matching lines @@
         state_info_.target_name.value().c_str(),
         full_path().value().c_str());
   } else {
     description += base::StringPrintf(" url = \"%s\"", url_list.c_str());
   }
 
   description += " }";
 
   return description;
 }