Revert 283678 "Refactor code that defers extension background pa..."

trunk/src/chrome/browser/extensions/chrome_process_manager_delegate.cc

-// Copyright 2014 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/extensions/chrome_process_manager_delegate.h"
-
-#include "base/command_line.h"
-#include "base/logging.h"
-#include "chrome/browser/browser_process.h"
-#include "chrome/browser/chrome_notification_types.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/profiles/profile_manager.h"
-#include "chrome/browser/ui/browser.h"
-#include "content/public/browser/notification_service.h"
-#include "extensions/browser/extension_system.h"
-#include "extensions/browser/process_manager.h"
-#include "extensions/common/one_shot_event.h"
-
-#if !defined(OS_ANDROID)
-#include "chrome/browser/ui/browser_finder.h"
-#include "chrome/common/chrome_switches.h"
-#endif
-
-namespace extensions {
-
-ChromeProcessManagerDelegate::ChromeProcessManagerDelegate() {
-  registrar_.Add(this,
-                 chrome::NOTIFICATION_BROWSER_WINDOW_READY,
-                 content::NotificationService::AllSources());
-  registrar_.Add(this,
-                 chrome::NOTIFICATION_PROFILE_CREATED,
-                 content::NotificationService::AllSources());
-  // TODO(jamescook): Move observation of NOTIFICATION_PROFILE_DESTROYED here.
-  // http://crbug.com/392658
-}
-
-ChromeProcessManagerDelegate::~ChromeProcessManagerDelegate() {
-}
-
-bool ChromeProcessManagerDelegate::IsBackgroundPageAllowed(
-    content::BrowserContext* context) const {
-  Profile* profile = static_cast<Profile*>(context);
-
-  // Disallow if the current session is a Guest mode session but the current
-  // browser context is *not* off-the-record. Such context is artificial and
-  // background page shouldn't be created in it.
-  // http://crbug.com/329498
-  return !(profile->IsGuestSession() && !profile->IsOffTheRecord());
-}
-
-bool ChromeProcessManagerDelegate::DeferCreatingStartupBackgroundHosts(
-    content::BrowserContext* context) const {
-  Profile* profile = static_cast<Profile*>(context);
-
-  // The profile may not be valid yet if it is still being initialized.
-  // In that case, defer loading, since it depends on an initialized profile.
-  // Background hosts will be loaded later via NOTIFICATION_PROFILE_CREATED.
-  // http://crbug.com/222473
-  if (!g_browser_process->profile_manager()->IsValidProfile(profile))
-    return true;
-
-#if defined(OS_ANDROID)
-  return false;
-#else
-  // There are no browser windows open and the browser process was
-  // started to show the app launcher. Background hosts will be loaded later
-  // via NOTIFICATION_BROWSER_WINDOW_READY. http://crbug.com/178260
-  return chrome::GetTotalBrowserCountForProfile(profile) == 0 &&
-         CommandLine::ForCurrentProcess()->HasSwitch(switches::kShowAppList);
-#endif
-}
-
-void ChromeProcessManagerDelegate::Observe(
-    int type,
-    const content::NotificationSource& source,
-    const content::NotificationDetails& details) {
-  switch (type) {
-    case chrome::NOTIFICATION_BROWSER_WINDOW_READY: {
-      Browser* browser = content::Source<Browser>(source).ptr();
-      OnBrowserWindowReady(browser);
-      break;
-    }
-    case chrome::NOTIFICATION_PROFILE_CREATED: {
-      Profile* profile = content::Source<Profile>(source).ptr();
-      OnProfileCreated(profile);
-      break;
-    }
-
-    default:
-      NOTREACHED();
-  }
-}
-
-void ChromeProcessManagerDelegate::OnBrowserWindowReady(Browser* browser) {
-  Profile* profile = browser->profile();
-  DCHECK(profile);
-
-  // If the extension system isn't ready yet the background hosts will be
-  // created automatically when it is.
-  ExtensionSystem* system = ExtensionSystem::Get(profile);
-  if (!system->ready().is_signaled())
-    return;
-
-  // Inform the process manager for this profile that the window is ready.
-  // We continue to observe the notification in case browser windows open for
-  // a related incognito profile or other regular profiles.
-  ProcessManager* manager = system->process_manager();
-  if (!manager)  // Tests may not have a process manager.
-    return;
-  DCHECK_EQ(profile, manager->GetBrowserContext());
-  manager->MaybeCreateStartupBackgroundHosts();
-
-  // For incognito profiles also inform the original profile's process manager
-  // that the window is ready. This will usually be a no-op because the
-  // original profile's process manager should have been informed when the
-  // non-incognito window opened.
-  if (profile->IsOffTheRecord()) {
-    Profile* original_profile = profile->GetOriginalProfile();
-    ProcessManager* original_manager =
-        ExtensionSystem::Get(original_profile)->process_manager();
-    DCHECK(original_manager);
-    DCHECK_EQ(original_profile, original_manager->GetBrowserContext());
-    original_manager->MaybeCreateStartupBackgroundHosts();
-  }
-}
-
-void ChromeProcessManagerDelegate::OnProfileCreated(Profile* profile) {
-  // Incognito profiles are handled by their original profile.
-  if (profile->IsOffTheRecord())
-    return;
-
-  // The profile can be created before the extension system is ready.
-  ProcessManager* manager = ExtensionSystem::Get(profile)->process_manager();
-  if (!manager)
-    return;
-
-  // The profile might have been initialized asynchronously (in parallel with
-  // extension system startup). Now that initialization is complete the
-  // ProcessManager can load deferred background pages.
-  manager->MaybeCreateStartupBackgroundHosts();
-}
-
-}  // namespace extensions