Allow synchronous messages to be sent from threads other than the main thread...

chrome/renderer/renderer_webkitclient_impl.cc

 // Copyright (c) 2010 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/renderer/renderer_webkitclient_impl.h"
 
 #if defined(USE_SYSTEM_SQLITE)
 #include <sqlite3.h>
 #else
 #include "third_party/sqlite/preprocessed/sqlite3.h"
 #endif
 
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/platform_file.h"
 #include "chrome/common/appcache/appcache_dispatcher.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/database_util.h"
-#include "chrome/common/db_message_filter.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/webmessageportchannel_impl.h"
 #include "chrome/plugin/npobject_util.h"
 #include "chrome/renderer/net/render_dns_master.h"
 #include "chrome/renderer/render_thread.h"
 #include "chrome/renderer/render_view.h"
 #include "chrome/renderer/renderer_webstoragenamespace_impl.h"
 #include "chrome/renderer/visitedlink_slave.h"
 #include "chrome/renderer/webgraphicscontext3d_command_buffer_impl.h"
 #include "googleurl/src/gurl.h"
@@ skipping 298 matching lines @@
     const WebKit::WebString& challenge,
     const WebKit::WebURL& url) {
   std::string signed_public_key;
   RenderThread::current()->Send(new ViewHostMsg_Keygen(
       static_cast<uint32>(key_size_index),
       challenge.utf8(),
       GURL(url),
       &signed_public_key));
   return WebString::fromUTF8(signed_public_key);
 }