Bringing back fast user switching on desktop user menu

chrome/browser/ui/views/profiles/profile_chooser_view.cc

Index: chrome/browser/ui/views/profiles/profile_chooser_view.cc
diff --git a/chrome/browser/ui/views/profiles/profile_chooser_view.cc b/chrome/browser/ui/views/profiles/profile_chooser_view.cc
index 6f262f9c51f78fc2fb90a8f49ff347d93027a0f0..51dfc3269fe24b34ea25eb6242c87e4f786e457f 100644
--- a/chrome/browser/ui/views/profiles/profile_chooser_view.cc
+++ b/chrome/browser/ui/views/profiles/profile_chooser_view.cc
@@ -630,8 +630,11 @@ void ProfileChooserView::ShowBubble(
   // Don't start creating the view if it would be an empty fast user switcher.
   // It has to happen here to prevent the view system from creating an empty
   // container.
+  // Same for material design user menu since fast profile switcher will be
+  // migrated to the left-click menu.
   if (view_mode == profiles::BUBBLE_VIEW_MODE_FAST_PROFILE_CHOOSER &&
-      !profiles::HasProfileSwitchTargets(browser->profile())) {
+      (!profiles::HasProfileSwitchTargets(browser->profile()) ||
+       switches::IsMaterialDesignUserMenu())) {
     return;
   }
 
@@ -698,6 +701,7 @@ void ProfileChooserView::ResetView() {
   auth_error_email_button_ = NULL;
   current_profile_photo_ = NULL;
   current_profile_name_ = NULL;
+  guest_profile_button_ = NULL;
   users_button_ = NULL;
   go_incognito_button_ = NULL;
   lock_button_ = NULL;
@@ -902,7 +906,17 @@ bool ProfileChooserView::HandleContextMenu(
 
 void ProfileChooserView::ButtonPressed(views::Button* sender,
                                        const ui::Event& event) {
-  if (sender == users_button_) {
+  if (sender == guest_profile_button_) {
+    PrefService* service = g_browser_process->local_state();
+    DCHECK(service);
+    if (service->GetBoolean(prefs::kBrowserGuestModeEnabled)) {
+      profiles::SwitchToGuestProfile(ProfileManager::CreateCallback());
+    } else {
+      // The UI should have prevented the user from allowing the selection of
+      // guest mode.
+      NOTREACHED();
+    }
+  } else if (sender == users_button_) {
     // If this is a guest session, close all the guest browser windows.
     if (browser_->profile()->IsGuestSession()) {
       profiles::CloseGuestProfileWindows();
@@ -1091,7 +1105,8 @@ void ProfileChooserView::PopulateCompleteProfileChooserView(
     const AvatarMenu::Item& item = avatar_menu->GetItemAt(i);
     if (item.active) {
       option_buttons_view = CreateOptionsView(
-          item.signed_in && profiles::IsLockAvailable(browser_->profile()));
+          item.signed_in && profiles::IsLockAvailable(browser_->profile()),
+          avatar_menu);
       current_profile_view = CreateCurrentProfileView(item, false);
       if (IsProfileChooser(view_mode_)) {
         tutorial_view = CreateTutorialViewIfNeeded(item);
@@ -1114,7 +1129,7 @@ void ProfileChooserView::PopulateCompleteProfileChooserView(
   if (!current_profile_view) {
     // Guest windows don't have an active profile.
     current_profile_view = CreateGuestProfileView();
-    option_buttons_view = CreateOptionsView(false);
+    option_buttons_view = CreateOptionsView(false, avatar_menu);
   }
 
   layout->StartRow(1, 0);
@@ -1498,21 +1513,60 @@ views::View* ProfileChooserView::CreateOtherProfilesView(
   return view;
 }
 
-views::View* ProfileChooserView::CreateOptionsView(bool display_lock) {
+views::View* ProfileChooserView::CreateOptionsView(
+    bool display_lock,
+    AvatarMenu* avatar_menu) {
   views::View* view = new views::View();
   views::GridLayout* layout = CreateSingleColumnLayout(view, kFixedMenuWidth);
 
+  const int kIconSize = switches::IsMaterialDesignUserMenu() ? 20 : 16;
+  if (switches::IsMaterialDesignUserMenu()) {
+    // Add the user switching buttons
+    const int kProfileIconSize = 18;
+    layout->StartRowWithPadding(1, 0, 0,
+                                views::kRelatedControlVerticalSpacing);
+    for (size_t i = 0; i < avatar_menu->GetNumberOfItems(); ++i) {
+      const AvatarMenu::Item& item = avatar_menu->GetItemAt(i);
+      if (!item.active) {
+        gfx::Image image = profiles::GetSizedAvatarIcon(
+            item.icon, true, kProfileIconSize, kProfileIconSize,
+            profiles::SHAPE_CIRCLE);
+        views::LabelButton* button = new BackgroundColorHoverButton(
+            this,
+            profiles::GetProfileSwitcherTextForItem(item),
+            *image.ToImageSkia());
+        open_other_profile_indexes_map_[button] = i;
+
+        layout->StartRow(1, 0);
+        layout->AddView(button);
+      }
+    }
+
+    // Add the "Guest" button for browsing as guest
+    if (!browser_->profile()->IsGuestSession()) {
+      PrefService* service = g_browser_process->local_state();
+      DCHECK(service);
+      if (service->GetBoolean(prefs::kBrowserGuestModeEnabled)) {
+        guest_profile_button_ = new BackgroundColorHoverButton(
+            this,
+            l10n_util::GetStringUTF16(IDS_GUEST_PROFILE_NAME),
+            gfx::CreateVectorIcon(gfx::VectorIconId::ACCOUNT_CIRCLE,
+                                  kIconSize, gfx::kChromeIconGrey));
+        layout->StartRow(1, 0);
+        layout->AddView(guest_profile_button_);
+      }
+    }
+  }
+
   base::string16 text = browser_->profile()->IsGuestSession() ?
       l10n_util::GetStringUTF16(IDS_PROFILES_EXIT_GUEST) :
       l10n_util::GetStringUTF16(IDS_PROFILES_SWITCH_USERS_BUTTON);
+  gfx::VectorIconId settings_icon = gfx::VectorIconId::ACCOUNT_BOX;
   if (!browser_->profile()->IsGuestSession()
       && switches::IsMaterialDesignUserMenu()) {
     text = l10n_util::GetStringUTF16(IDS_PROFILES_MANAGE_USERS_BUTTON);
+    settings_icon = gfx::VectorIconId::SETTINGS;
   }
-  const int kIconSize = 16;
-
-  gfx::VectorIconId settings_icon = switches::IsMaterialDesignUserMenu() ?
-      gfx::VectorIconId::SETTINGS : gfx::VectorIconId::ACCOUNT_BOX;
   users_button_ = new BackgroundColorHoverButton(
       this, text, gfx::CreateVectorIcon(settings_icon, kIconSize,
                                         gfx::kChromeIconGrey));
@@ -1534,8 +1588,10 @@ views::View* ProfileChooserView::CreateOptionsView(bool display_lock) {
   }
 
   if (display_lock) {
-    layout->StartRow(1, 0);
-    layout->AddView(new views::Separator(views::Separator::HORIZONTAL));
+    if (!switches::IsMaterialDesignUserMenu()) {
+      layout->StartRow(1, 0);
+      layout->AddView(new views::Separator(views::Separator::HORIZONTAL));
+    }
 
     lock_button_ = new BackgroundColorHoverButton(
         this, l10n_util::GetStringUTF16(IDS_PROFILES_PROFILE_SIGNOUT_BUTTON),
@@ -1544,6 +1600,11 @@ views::View* ProfileChooserView::CreateOptionsView(bool display_lock) {
     layout->StartRow(1, 0);
     layout->AddView(lock_button_);
   }
+
+  if (switches::IsMaterialDesignUserMenu()) {
+      layout->StartRowWithPadding(1, 0, 0,
+                                  views::kRelatedControlVerticalSpacing);
+  }
   return view;
 }