[Win,Linux] New avatar menu: Don't show the "Sign in to Chrome" button if sign-in is not allowed.

chrome/browser/ui/views/profiles/profile_chooser_view.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/ui/views/profiles/profile_chooser_view.h"
 
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
@@ skipping 963 matching lines @@
   // Profile name, centered.
   current_profile_name_ = new EditableProfileName(
       this, profiles::GetAvatarNameForProfile(browser_->profile()), !is_guest);
   layout->StartRow(1, 0);
   layout->AddView(current_profile_name_);
 
   if (is_guest)
     return view;
 
   // The available links depend on the type of profile that is active.
-  layout->StartRow(1, 0);
   if (avatar_item.signed_in) {
+    layout->StartRow(1, 0);
     if (switches::IsNewProfileManagement()) {
       base::string16 link_title = l10n_util::GetStringUTF16(
           view_mode_ ==  BUBBLE_VIEW_MODE_PROFILE_CHOOSER ?
               IDS_PROFILES_PROFILE_MANAGE_ACCOUNTS_BUTTON :
               IDS_PROFILES_PROFILE_HIDE_MANAGE_ACCOUNTS_BUTTON);
       manage_accounts_link_ = CreateLink(link_title, this);
       manage_accounts_link_->SetHorizontalAlignment(gfx::ALIGN_CENTER);
       layout->AddView(manage_accounts_link_);
     } else {
       views::Label* email_label = new views::Label(avatar_item.sync_state);
       email_label->SetHorizontalAlignment(gfx::ALIGN_CENTER);
       layout->AddView(email_label);
     }
   } else {
-    signin_current_profile_link_ = new views::BlueButton(
-      this, l10n_util::GetStringFUTF16(IDS_SYNC_START_SYNC_BUTTON_LABEL,
-          l10n_util::GetStringUTF16(IDS_SHORT_PRODUCT_NAME)));
-    layout->AddView(signin_current_profile_link_);
+    SigninManagerBase* signin_manager =
+        SigninManagerFactory::GetForProfile(
+            browser_->profile()->GetOriginalProfile());
+    if (signin_manager->IsSigninAllowed()) {
+      signin_current_profile_link_ = new views::BlueButton(
+        this, l10n_util::GetStringFUTF16(IDS_SYNC_START_SYNC_BUTTON_LABEL,
+            l10n_util::GetStringUTF16(IDS_SHORT_PRODUCT_NAME)));
+      layout->StartRow(1, 0);
+      layout->AddView(signin_current_profile_link_);
+    }
   }
 
   return view;
 }
 
 views::View* ProfileChooserView::CreateGuestProfileView() {
   gfx::Image guest_icon =
       ui::ResourceBundle::GetSharedInstance().GetImageNamed(
           profiles::GetPlaceholderAvatarIconResourceID());
   AvatarMenu::Item guest_avatar_item(0, 0, guest_icon);
@@ skipping 290 matching lines @@
   layout->StartRowWithPadding(
       1, 0, 0, views::kUnrelatedControlVerticalSpacing);
   layout->AddView(end_preview_and_relaunch_button_);
 
   TitleCard* title_card = new TitleCard(
       IDS_PROFILES_END_PREVIEW, this, &end_preview_cancel_button_);
   return TitleCard::AddPaddedTitleCard(
       view, title_card, kFixedAccountRemovalViewWidth);
 }