Factor out dependncy on download throttling from core download code.

chrome/browser/browser_process_impl.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/browser_process_impl.h"
 
 #include <map>
 #include <set>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/task.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_restrictions.h"
 #include "chrome/browser/automation/automation_provider_list.h"
 #include "chrome/browser/background/background_mode_manager.h"
 #include "chrome/browser/browser_main.h"
 #include "chrome/browser/browser_process_sub_thread.h"
 #include "chrome/browser/browser_trial.h"
 #include "chrome/browser/component_updater/component_updater_configurator.h"
 #include "chrome/browser/component_updater/component_updater_service.h"
 #include "chrome/browser/debugger/devtools_protocol_handler.h"
 #include "chrome/browser/debugger/remote_debugging_server.h"
+#include "chrome/browser/download/download_request_limiter.h"
 #include "chrome/browser/extensions/extension_event_router_forwarder.h"
 #include "chrome/browser/extensions/extension_tab_id_map.h"
 #include "chrome/browser/extensions/user_script_listener.h"
 #include "chrome/browser/first_run/upgrade_util.h"
 #include "chrome/browser/google/google_url_tracker.h"
 #include "chrome/browser/icon_manager.h"
 #include "chrome/browser/intranet_redirect_detector.h"
 #include "chrome/browser/io_thread.h"
 #include "chrome/browser/metrics/metrics_service.h"
 #include "chrome/browser/metrics/thread_watcher.h"
@@ skipping 542 matching lines @@
 
 void BrowserProcessImpl::SetApplicationLocale(const std::string& locale) {
   locale_ = locale;
   extension_l10n_util::SetProcessLocale(locale);
 }
 
 DownloadStatusUpdater* BrowserProcessImpl::download_status_updater() {
   return &download_status_updater_;
 }
 
+DownloadRequestLimiter* BrowserProcessImpl::download_request_limiter() {
+  DCHECK(CalledOnValidThread());
+  if (!download_request_limiter_)
+    download_request_limiter_ = new DownloadRequestLimiter();
+  return download_request_limiter_;
+}
+
 TabCloseableStateWatcher* BrowserProcessImpl::tab_closeable_state_watcher() {
   DCHECK(CalledOnValidThread());
   if (!tab_closeable_state_watcher_.get())
     CreateTabCloseableStateWatcher();
   return tab_closeable_state_watcher_.get();
 }
 
 BackgroundModeManager* BrowserProcessImpl::background_mode_manager() {
   DCHECK(CalledOnValidThread());
   if (!background_mode_manager_.get())
@@ skipping 519 matching lines @@
 }
 
 void BrowserProcessImpl::OnAutoupdateTimer() {
   if (CanAutorestartForUpdate()) {
     DLOG(WARNING) << "Detected update.  Restarting browser.";
     RestartPersistentInstance();
   }
 }
 
 #endif  // (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)