Move initialization of ChromeURLRequestContexts to the IO thread.

chrome/browser/sync/glue/sync_backend_host.cc

 // Copyright (c) 2006-2008 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.
 
 #if defined(BROWSER_SYNC)
 
 #include "build/build_config.h"
 #include "base/file_version_info.h"
 #include "base/file_util.h"
 #include "base/string_util.h"
@@ skipping 22 matching lines @@
       processor_(processor),
       sync_data_folder_path_(profile_path.Append(kSyncDataFolderName)),
       last_auth_error_(AUTH_ERROR_NONE) {
   core_ = new Core(this);
 }
 
 SyncBackendHost::~SyncBackendHost() {
   DCHECK(!core_ && !frontend_) << "Must call Shutdown before destructor.";
 }
 
-void SyncBackendHost::Initialize(const GURL& sync_service_url,
-                                 URLRequestContext* baseline_context) {
+void SyncBackendHost::Initialize(
+    const GURL& sync_service_url,
+    URLRequestContextGetter* baseline_context_getter) {
   if (!core_thread_.Start())
     return;
   bookmark_model_worker_ = new BookmarkModelWorker(frontend_loop_);
 
   core_thread_.message_loop()->PostTask(FROM_HERE,
       NewRunnableMethod(core_.get(), &SyncBackendHost::Core::DoInitialize,
                         sync_service_url, bookmark_model_worker_, true,
-                        new HttpBridgeFactory(baseline_context),
-                        new HttpBridgeFactory(baseline_context)));
+                        new HttpBridgeFactory(baseline_context_getter),
+                        new HttpBridgeFactory(baseline_context_getter)));
 }
 
 void SyncBackendHost::Authenticate(const std::string& username,
                                    const std::string& password) {
   core_thread_.message_loop()->PostTask(FROM_HERE,
       NewRunnableMethod(core_.get(), &SyncBackendHost::Core::DoAuthenticate,
                         username, password));
 }
 
 void SyncBackendHost::Shutdown(bool sync_disabled) {
@@ skipping 243 matching lines @@
       this, &Core::SaveChanges);
 }
 
 void SyncBackendHost::Core::SaveChanges() {
   syncapi_->SaveChanges();
 }
 
 }  // namespace browser_sync
 
 #endif  // defined(BROWSER_SYNC)