chrome/browser/jumplist_win.cc

   1 // Copyright 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/jumplist_win.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/command_line.h"
  10 #include "base/files/file_util.h"
  11 #include "base/metrics/field_trial.h"
  12 #include "base/path_service.h"
  13 #include "base/prefs/pref_change_registrar.h"
  14 #include "base/strings/string_util.h"
  15 #include "base/strings/utf_string_conversions.h"
  16 #include "base/threading/thread.h"
  17 #include "chrome/browser/browser_process.h"
  18 #include "chrome/browser/chrome_notification_types.h"
  19 #include "chrome/browser/favicon/favicon_service.h"
  20 #include "chrome/browser/favicon/favicon_service_factory.h"
  21 #include "chrome/browser/history/history_service.h"
  22 #include "chrome/browser/history/top_sites_factory.h"
  23 #include "chrome/browser/metrics/jumplist_metrics_win.h"
  24 #include "chrome/browser/profiles/profile.h"
  25 #include "chrome/browser/profiles/profile_info_cache.h"
  26 #include "chrome/browser/profiles/profile_manager.h"
  27 #include "chrome/browser/sessions/tab_restore_service.h"
  28 #include "chrome/browser/sessions/tab_restore_service_factory.h"
  29 #include "chrome/browser/shell_integration.h"
  30 #include "chrome/common/chrome_constants.h"
  31 #include "chrome/common/chrome_switches.h"
  32 #include "chrome/common/pref_names.h"
  33 #include "chrome/common/url_constants.h"
  34 #include "chrome/grit/generated_resources.h"
  35 #include "components/favicon_base/favicon_types.h"
  36 #include "components/history/core/browser/page_usage_data.h"
  37 #include "components/history/core/browser/top_sites.h"
  38 #include "components/sessions/session_types.h"
  39 #include "components/signin/core/common/profile_management_switches.h"
  40 #include "content/public/browser/browser_thread.h"
  41 #include "content/public/browser/notification_source.h"
  42 #include "ui/base/l10n/l10n_util.h"
  43 #include "ui/gfx/codec/png_codec.h"
  44 #include "ui/gfx/favicon_size.h"
  45 #include "ui/gfx/icon_util.h"
  46 #include "ui/gfx/image/image_family.h"
  47 #include "url/gurl.h"
  48
  49 using content::BrowserThread;
  50
  51 namespace {
  52
  53 // Append the common switches to each shell link.
  54 void AppendCommonSwitches(ShellLinkItem* shell_link) {
  55   const char* kSwitchNames[] = { switches::kUserDataDir };
  56   const base::CommandLine& command_line =
  57       *base::CommandLine::ForCurrentProcess();
  58   shell_link->GetCommandLine()->CopySwitchesFrom(command_line,
  59                                                  kSwitchNames,
  60                                                  arraysize(kSwitchNames));
  61 }
  62
  63 // Create a ShellLinkItem preloaded with common switches.
  64 scoped_refptr<ShellLinkItem> CreateShellLink() {
  65   scoped_refptr<ShellLinkItem> link(new ShellLinkItem);
  66   AppendCommonSwitches(link.get());
  67   return link;
  68 }
  69
  70 // Creates a temporary icon file to be shown in JumpList.
  71 bool CreateIconFile(const SkBitmap& bitmap,
  72                     const base::FilePath& icon_dir,
  73                     base::FilePath* icon_path) {
  74   // Retrieve the path to a temporary file.
  75   // We don't have to care about the extension of this temporary file because
  76   // JumpList does not care about it.
  77   base::FilePath path;
  78   if (!base::CreateTemporaryFileInDir(icon_dir, &path))
  79     return false;
  80
  81   // Create an icon file from the favicon attached to the given |page|, and
  82   // save it as the temporary file.
  83   gfx::ImageFamily image_family;
  84   image_family.Add(gfx::Image::CreateFrom1xBitmap(bitmap));
  85   if (!IconUtil::CreateIconFileFromImageFamily(image_family, path))
  86     return false;
  87
  88   // Add this icon file to the list and return its absolute path.
  89   // The IShellLink::SetIcon() function needs the absolute path to an icon.
  90   *icon_path = path;
  91   return true;
  92 }
  93
  94 // Updates the "Tasks" category of the JumpList.
  95 bool UpdateTaskCategory(
  96     JumpListUpdater* jumplist_updater,
  97     IncognitoModePrefs::Availability incognito_availability) {
  98   base::FilePath chrome_path;
  99   if (!PathService::Get(base::FILE_EXE, &chrome_path))
 100     return false;
 101
 102   ShellLinkItemList items;
 103
 104   // Create an IShellLink object which launches Chrome, and add it to the
 105   // collection. We use our application icon as the icon for this item.
 106   // We remove '&' characters from this string so we can share it with our
 107   // system menu.
 108   if (incognito_availability != IncognitoModePrefs::FORCED) {
 109     scoped_refptr<ShellLinkItem> chrome = CreateShellLink();
 110     base::string16 chrome_title = l10n_util::GetStringUTF16(IDS_NEW_WINDOW);
 111     ReplaceSubstringsAfterOffset(&chrome_title, 0, L"&", L"");
 112     chrome->set_title(chrome_title);
 113     chrome->set_icon(chrome_path.value(), 0);
 114     items.push_back(chrome);
 115   }
 116
 117   // Create an IShellLink object which launches Chrome in incognito mode, and
 118   // add it to the collection. We use our application icon as the icon for
 119   // this item.
 120   if (incognito_availability != IncognitoModePrefs::DISABLED) {
 121     scoped_refptr<ShellLinkItem> incognito = CreateShellLink();
 122     incognito->GetCommandLine()->AppendSwitch(switches::kIncognito);
 123     base::string16 incognito_title =
 124         l10n_util::GetStringUTF16(IDS_NEW_INCOGNITO_WINDOW);
 125     ReplaceSubstringsAfterOffset(&incognito_title, 0, L"&", L"");
 126     incognito->set_title(incognito_title);
 127     incognito->set_icon(chrome_path.value(), 0);
 128     items.push_back(incognito);
 129   }
 130
 131   return jumplist_updater->AddTasks(items);
 132 }
 133
 134 // Updates the application JumpList.
 135 bool UpdateJumpList(const wchar_t* app_id,
 136                     const ShellLinkItemList& most_visited_pages,
 137                     const ShellLinkItemList& recently_closed_pages,
 138                     const ShellLinkItemList& profile_switcher,
 139                     IncognitoModePrefs::Availability incognito_availability,
 140                     bool use_profiles_category) {
 141   // JumpList is implemented only on Windows 7 or later.
 142   // So, we should return now when this function is called on earlier versions
 143   // of Windows.
 144   if (!JumpListUpdater::IsEnabled())
 145     return true;
 146
 147   JumpListUpdater jumplist_updater(app_id);
 148   if (!jumplist_updater.BeginUpdate())
 149     return false;
 150
 151   size_t recently_closed_items;
 152   size_t profiles_or_most_visited_items;
 153
 154   // Depending on the experiment, we are either showing the "Most-Visited" or
 155   // "People" categories.
 156   if (use_profiles_category) {
 157     // Show at most 8 profiles, and fill the rest of the slots with the
 158     // "recently-closed" items.
 159     const size_t kMaxProfiles = 8;
 160     size_t max_displayed_items = std::min(kMaxProfiles,
 161                                           jumplist_updater.user_max_items());
 162     profiles_or_most_visited_items = std::min(max_displayed_items,
 163                                               profile_switcher.size());
 164     recently_closed_items =
 165         jumplist_updater.user_max_items() - profiles_or_most_visited_items;
 166   } else {
 167     // We allocate 60% of the given JumpList slots to "most-visited" items
 168     // and 40% to "recently-closed" items, respectively.
 169     // Nevertheless, if there are not so many items in |recently_closed_pages|,
 170     // we give the remaining slots to "most-visited" items.
 171     const int kMostVisited = 60;
 172     const int kRecentlyClosed = 40;
 173     const int kTotal = kMostVisited + kRecentlyClosed;
 174     profiles_or_most_visited_items =
 175         MulDiv(jumplist_updater.user_max_items(), kMostVisited, kTotal);
 176     recently_closed_items =
 177         jumplist_updater.user_max_items() - profiles_or_most_visited_items;
 178     if (recently_closed_pages.size() < recently_closed_items) {
 179       profiles_or_most_visited_items +=
 180           recently_closed_items - recently_closed_pages.size();
 181       recently_closed_items = recently_closed_pages.size();
 182     }
 183   }
 184
 185   // Update the "Most Visited" category of the JumpList if it exists.
 186   // This update request is applied into the JumpList when we commit this
 187   // transaction.
 188   if (!use_profiles_category && !jumplist_updater.AddCustomCategory(
 189           l10n_util::GetStringUTF16(IDS_NEW_TAB_MOST_VISITED),
 190           most_visited_pages, profiles_or_most_visited_items)) {
 191     return false;
 192   }
 193
 194   // Update the "Recently Closed" category of the JumpList.
 195   if (!jumplist_updater.AddCustomCategory(
 196           l10n_util::GetStringUTF16(IDS_NEW_TAB_RECENTLY_CLOSED),
 197           recently_closed_pages, recently_closed_items)) {
 198     return false;
 199   }
 200
 201   // Update the "People" category of the JumpList if it exists. Only display it
 202   // if there's more than one profile available.
 203   if (use_profiles_category && profile_switcher.size() > 1 &&
 204       !jumplist_updater.AddCustomCategory(
 205           l10n_util::GetStringUTF16(IDS_PROFILES_OPTIONS_GROUP_NAME),
 206           profile_switcher, profiles_or_most_visited_items)) {
 207     return false;
 208   }
 209
 210   // Update the "Tasks" category of the JumpList.
 211   if (!UpdateTaskCategory(&jumplist_updater, incognito_availability))
 212     return false;
 213
 214   // Commit this transaction and send the updated JumpList to Windows.
 215   if (!jumplist_updater.CommitUpdate())
 216     return false;
 217
 218   return true;
 219 }
 220
 221 // Checks whether the experiment that replaces the Most Visited category
 222 // with a Profiles list exists.
 223 bool HasProfilesJumplistExperiment() {
 224   const std::string group_name =
 225       base::FieldTrialList::FindFullName("WindowsJumplistProfiles");
 226   return group_name == "UseProfiles";
 227 }
 228
 229 }  // namespace
 230
 231 JumpList::JumpList(Profile* profile)
 232     : profile_(profile),
 233       task_id_(base::CancelableTaskTracker::kBadTaskId),
 234       weak_ptr_factory_(this),
 235       use_profiles_category_(false) {
 236   DCHECK(Enabled());
 237   // To update JumpList when a tab is added or removed, we add this object to
 238   // the observer list of the TabRestoreService class.
 239   // When we add this object to the observer list, we save the pointer to this
 240   // TabRestoreService object. This pointer is used when we remove this object
 241   // from the observer list.
 242   TabRestoreService* tab_restore_service =
 243       TabRestoreServiceFactory::GetForProfile(profile_);
 244   if (!tab_restore_service)
 245     return;
 246
 247   app_id_ = ShellIntegration::GetChromiumModelIdForProfile(profile_->GetPath());
 248   icon_dir_ = profile_->GetPath().Append(chrome::kJumpListIconDirname);
 249   use_profiles_category_ = HasProfilesJumplistExperiment();
 250
 251   scoped_refptr<history::TopSites> top_sites =
 252       TopSitesFactory::GetForProfile(profile_);
 253   if (top_sites) {
 254     // TopSites updates itself after a delay. This is especially noticable when
 255     // your profile is empty. Ask TopSites to update itself when jumplist is
 256     // initialized.
 257     top_sites->SyncWithHistory();
 258     registrar_.reset(new content::NotificationRegistrar);
 259     // Register as TopSitesObserver so that we can update ourselves when the
 260     // TopSites changes.
 261     top_sites->AddObserver(this);
 262     // Register for notification when profile is destroyed to ensure that all
 263     // observers are detatched at that time.
 264     registrar_->Add(this, chrome::NOTIFICATION_PROFILE_DESTROYED,
 265                     content::Source<Profile>(profile_));
 266   }
 267   tab_restore_service->AddObserver(this);
 268   pref_change_registrar_.reset(new PrefChangeRegistrar);
 269   pref_change_registrar_->Init(profile_->GetPrefs());
 270   pref_change_registrar_->Add(
 271       prefs::kIncognitoModeAvailability,
 272       base::Bind(&JumpList::OnIncognitoAvailabilityChanged, this));
 273
 274   ProfileManager* profile_manager = g_browser_process->profile_manager();
 275   avatar_menu_.reset(new AvatarMenu(
 276       &profile_manager->GetProfileInfoCache(), this, NULL));
 277   if (use_profiles_category_) {
 278     avatar_menu_->RebuildMenu();
 279     UpdateProfileSwitcher();
 280   }
 281 }
 282
 283 JumpList::~JumpList() {
 284   Terminate();
 285 }
 286
 287 // static
 288 bool JumpList::Enabled() {
 289   return JumpListUpdater::IsEnabled();
 290 }
 291
 292 void JumpList::Observe(int type,
 293                        const content::NotificationSource& source,
 294                        const content::NotificationDetails& details) {
 295   DCHECK_EQ(type, chrome::NOTIFICATION_PROFILE_DESTROYED);
 296   // Profile was destroyed, do clean-up.
 297   Terminate();
 298 }
 299
 300 void JumpList::CancelPendingUpdate() {
 301   if (task_id_ != base::CancelableTaskTracker::kBadTaskId) {
 302     cancelable_task_tracker_.TryCancel(task_id_);
 303     task_id_ = base::CancelableTaskTracker::kBadTaskId;
 304   }
 305 }
 306
 307 void JumpList::Terminate() {
 308   CancelPendingUpdate();
 309   if (profile_) {
 310     TabRestoreService* tab_restore_service =
 311         TabRestoreServiceFactory::GetForProfile(profile_);
 312     if (tab_restore_service)
 313       tab_restore_service->RemoveObserver(this);
 314     scoped_refptr<history::TopSites> top_sites =
 315         TopSitesFactory::GetForProfile(profile_);
 316     if (top_sites)
 317       top_sites->RemoveObserver(this);
 318     registrar_.reset();
 319     pref_change_registrar_.reset();
 320   }
 321   profile_ = NULL;
 322 }
 323
 324 void JumpList::OnMostVisitedURLsAvailable(
 325     const history::MostVisitedURLList& data) {
 326   // If we have a pending favicon request, cancel it here (it is out of date).
 327   CancelPendingUpdate();
 328
 329   {
 330     base::AutoLock auto_lock(list_lock_);
 331     most_visited_pages_.clear();
 332     for (size_t i = 0; i < data.size(); i++) {
 333       const history::MostVisitedURL& url = data[i];
 334       scoped_refptr<ShellLinkItem> link = CreateShellLink();
 335       std::string url_string = url.url.spec();
 336       std::wstring url_string_wide = base::UTF8ToWide(url_string);
 337       link->GetCommandLine()->AppendArgNative(url_string_wide);
 338       link->GetCommandLine()->AppendSwitchASCII(
 339           switches::kWinJumplistAction, jumplist::kMostVisitedCategory);
 340       link->set_title(!url.title.empty()? url.title : url_string_wide);
 341       most_visited_pages_.push_back(link);
 342       icon_urls_.push_back(make_pair(url_string, link));
 343     }
 344   }
 345
 346   // Send a query that retrieves the first favicon.
 347   StartLoadingFavicon();
 348 }
 349
 350 void JumpList::TabRestoreServiceChanged(TabRestoreService* service) {
 351   // if we have a pending handle request, cancel it here (it is out of date).
 352   CancelPendingUpdate();
 353
 354   // local list to pass to methods
 355   ShellLinkItemList temp_list;
 356
 357   // Create a list of ShellLinkItems from the "Recently Closed" pages.
 358   // As noted above, we create a ShellLinkItem objects with the following
 359   // parameters.
 360   // * arguments
 361   //   The last URL of the tab object.
 362   // * title
 363   //   The title of the last URL.
 364   // * icon
 365   //   An empty string. This value is to be updated in OnFaviconDataAvailable().
 366   // This code is copied from
 367   // RecentlyClosedTabsHandler::TabRestoreServiceChanged() to emulate it.
 368   const int kRecentlyClosedCount = 4;
 369   TabRestoreService* tab_restore_service =
 370       TabRestoreServiceFactory::GetForProfile(profile_);
 371   const TabRestoreService::Entries& entries = tab_restore_service->entries();
 372   for (TabRestoreService::Entries::const_iterator it = entries.begin();
 373        it != entries.end(); ++it) {
 374     const TabRestoreService::Entry* entry = *it;
 375     if (entry->type == TabRestoreService::TAB) {
 376       AddTab(static_cast<const TabRestoreService::Tab*>(entry),
 377              &temp_list, kRecentlyClosedCount);
 378     } else if (entry->type == TabRestoreService::WINDOW) {
 379       AddWindow(static_cast<const TabRestoreService::Window*>(entry),
 380                 &temp_list, kRecentlyClosedCount);
 381     }
 382   }
 383   // Lock recently_closed_pages and copy temp_list into it.
 384   {
 385     base::AutoLock auto_lock(list_lock_);
 386     recently_closed_pages_ = temp_list;
 387   }
 388
 389   // Send a query that retrieves the first favicon.
 390   StartLoadingFavicon();
 391 }
 392
 393 void JumpList::TabRestoreServiceDestroyed(TabRestoreService* service) {
 394 }
 395
 396 void JumpList::OnAvatarMenuChanged(AvatarMenu* avatar_menu) {
 397   if (!use_profiles_category_)
 398     return;
 399
 400   UpdateProfileSwitcher();
 401   PostRunUpdate();
 402 }
 403
 404 bool JumpList::AddTab(const TabRestoreService::Tab* tab,
 405                       ShellLinkItemList* list,
 406                       size_t max_items) {
 407   // This code adds the URL and the title strings of the given tab to the
 408   // specified list.
 409   if (list->size() >= max_items)
 410     return false;
 411
 412   scoped_refptr<ShellLinkItem> link = CreateShellLink();
 413   const sessions::SerializedNavigationEntry& current_navigation =
 414       tab->navigations.at(tab->current_navigation_index);
 415   std::string url = current_navigation.virtual_url().spec();
 416   link->GetCommandLine()->AppendArgNative(base::UTF8ToWide(url));
 417   link->GetCommandLine()->AppendSwitchASCII(
 418       switches::kWinJumplistAction, jumplist::kRecentlyClosedCategory);
 419   link->set_title(current_navigation.title());
 420   list->push_back(link);
 421   icon_urls_.push_back(make_pair(url, link));
 422   return true;
 423 }
 424
 425 void JumpList::AddWindow(const TabRestoreService::Window* window,
 426                          ShellLinkItemList* list,
 427                          size_t max_items) {
 428   // This code enumerates al the tabs in the given window object and add their
 429   // URLs and titles to the list.
 430   DCHECK(!window->tabs.empty());
 431
 432   for (size_t i = 0; i < window->tabs.size(); ++i) {
 433     if (!AddTab(&window->tabs[i], list, max_items))
 434       return;
 435   }
 436 }
 437
 438 void JumpList::StartLoadingFavicon() {
 439   GURL url;
 440   bool waiting_for_icons = true;
 441   {
 442     base::AutoLock auto_lock(list_lock_);
 443     waiting_for_icons = !icon_urls_.empty();
 444     if (waiting_for_icons) {
 445       // Ask FaviconService if it has a favicon of a URL.
 446       // When FaviconService has one, it will call OnFaviconDataAvailable().
 447       url = GURL(icon_urls_.front().first);
 448     }
 449   }
 450
 451   if (!waiting_for_icons) {
 452     // No more favicons are needed by the application JumpList. Schedule a
 453     // RunUpdateOnFileThread call.
 454     PostRunUpdate();
 455     return;
 456   }
 457
 458   FaviconService* favicon_service = FaviconServiceFactory::GetForProfile(
 459       profile_, ServiceAccessType::EXPLICIT_ACCESS);
 460   task_id_ = favicon_service->GetFaviconImageForPageURL(
 461       url,
 462       base::Bind(&JumpList::OnFaviconDataAvailable, base::Unretained(this)),
 463       &cancelable_task_tracker_);
 464 }
 465
 466 void JumpList::OnFaviconDataAvailable(
 467     const favicon_base::FaviconImageResult& image_result) {
 468   // If there is currently a favicon request in progress, it is now outdated,
 469   // as we have received another, so nullify the handle from the old request.
 470   task_id_ = base::CancelableTaskTracker::kBadTaskId;
 471   // Lock the list to set icon data and pop the url.
 472   {
 473     base::AutoLock auto_lock(list_lock_);
 474     // Attach the received data to the ShellLinkItem object.
 475     // This data will be decoded by the RunUpdateOnFileThread method.
 476     if (!image_result.image.IsEmpty()) {
 477       if (!icon_urls_.empty() && icon_urls_.front().second.get())
 478         icon_urls_.front().second->set_icon_data(image_result.image.AsBitmap());
 479     }
 480
 481     if (!icon_urls_.empty())
 482       icon_urls_.pop_front();
 483   }
 484   // Check whether we need to load more favicons.
 485   StartLoadingFavicon();
 486 }
 487
 488 void JumpList::OnIncognitoAvailabilityChanged() {
 489   bool waiting_for_icons = true;
 490   {
 491     base::AutoLock auto_lock(list_lock_);
 492     waiting_for_icons = !icon_urls_.empty();
 493   }
 494   if (!waiting_for_icons)
 495     PostRunUpdate();
 496   // If |icon_urls_| isn't empty then OnFaviconDataAvailable will eventually
 497   // call PostRunUpdate().
 498 }
 499
 500 void JumpList::PostRunUpdate() {
 501   // Check if incognito windows (or normal windows) are disabled by policy.
 502   IncognitoModePrefs::Availability incognito_availability =
 503       profile_ ? IncognitoModePrefs::GetAvailability(profile_->GetPrefs())
 504                : IncognitoModePrefs::ENABLED;
 505
 506   BrowserThread::PostTask(
 507       BrowserThread::FILE, FROM_HERE,
 508       base::Bind(&JumpList::RunUpdateOnFileThread,
 509                  this,
 510                  incognito_availability));
 511 }
 512
 513 void JumpList::RunUpdateOnFileThread(
 514     IncognitoModePrefs::Availability incognito_availability) {
 515   ShellLinkItemList local_most_visited_pages;
 516   ShellLinkItemList local_recently_closed_pages;
 517   ShellLinkItemList local_profile_switcher;
 518
 519   {
 520     base::AutoLock auto_lock(list_lock_);
 521     // Make sure we are not out of date: if icon_urls_ is not empty, then
 522     // another notification has been received since we processed this one
 523     if (!icon_urls_.empty())
 524       return;
 525
 526     // Make local copies of lists so we can release the lock.
 527     local_most_visited_pages = most_visited_pages_;
 528     local_recently_closed_pages = recently_closed_pages_;
 529     local_profile_switcher = profile_switcher_;
 530   }
 531
 532   // Delete the directory which contains old icon files, rename the current
 533   // icon directory, and create a new directory which contains new JumpList
 534   // icon files.
 535   base::FilePath icon_dir_old(icon_dir_.value() + L"Old");
 536   if (base::PathExists(icon_dir_old))
 537     base::DeleteFile(icon_dir_old, true);
 538   base::Move(icon_dir_, icon_dir_old);
 539   base::CreateDirectory(icon_dir_);
 540
 541   // Create temporary icon files for shortcuts in the "Most Visited" category.
 542   CreateIconFiles(local_most_visited_pages);
 543
 544   // Create temporary icon files for shortcuts in the "Recently Closed"
 545   // category.
 546   CreateIconFiles(local_recently_closed_pages);
 547
 548   // Create temporary icon files for the profile avatars in the "People"
 549   // category.
 550   if (use_profiles_category_)
 551     CreateIconFiles(local_profile_switcher);
 552
 553   // We finished collecting all resources needed for updating an application
 554   // JumpList. So, create a new JumpList and replace the current JumpList
 555   // with it.
 556   UpdateJumpList(app_id_.c_str(),
 557                  local_most_visited_pages,
 558                  local_recently_closed_pages,
 559                  local_profile_switcher,
 560                  incognito_availability,
 561                  use_profiles_category_);
 562 }
 563
 564 void JumpList::CreateIconFiles(const ShellLinkItemList& item_list) {
 565   for (ShellLinkItemList::const_iterator item = item_list.begin();
 566       item != item_list.end(); ++item) {
 567     base::FilePath icon_path;
 568     if (CreateIconFile((*item)->icon_data(), icon_dir_, &icon_path))
 569       (*item)->set_icon(icon_path.value(), 0);
 570   }
 571 }
 572
 573 void JumpList::UpdateProfileSwitcher() {
 574   DCHECK(use_profiles_category_);
 575   ShellLinkItemList new_profile_switcher;
 576
 577   // Don't display a menu in the single profile case.
 578   if (avatar_menu_->GetNumberOfItems() > 1) {
 579     for (size_t i = 0; i < avatar_menu_->GetNumberOfItems(); ++i) {
 580       scoped_refptr<ShellLinkItem> link = CreateShellLink();
 581       const AvatarMenu::Item& item = avatar_menu_->GetItemAt(i);
 582
 583       link->set_title(item.name);
 584       link->GetCommandLine()->AppendSwitchPath(
 585           switches::kProfileDirectory, item.profile_path.BaseName());
 586       link->GetCommandLine()->AppendSwitch(
 587           switches::kActivateExistingProfileBrowser);
 588       link->GetCommandLine()->AppendSwitchASCII(
 589           switches::kWinJumplistAction, jumplist::kProfilesCategory);
 590
 591       gfx::Image avatar;
 592       bool is_rectangle;
 593       avatar_menu_->GetImageForMenuButton(
 594           item.profile_path, &avatar, &is_rectangle);
 595       link->set_icon_data(avatar.AsBitmap());
 596       new_profile_switcher.push_back(link);
 597     }
 598   }
 599
 600   {
 601     base::AutoLock auto_lock(list_lock_);
 602     new_profile_switcher.swap(profile_switcher_);
 603   }
 604 }
 605
 606 void JumpList::TopSitesLoaded(history::TopSites* top_sites) {
 607 }
 608
 609 void JumpList::TopSitesChanged(history::TopSites* top_sites) {
 610   top_sites->GetMostVisitedURLs(
 611       base::Bind(&JumpList::OnMostVisitedURLsAvailable,
 612                  weak_ptr_factory_.GetWeakPtr()),
 613       false);
 614 }