Implemented inline login dialog for Chrome OS.

chrome/browser/ui/ash/user_accounts_delegate_chromeos.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/ash/user_accounts_delegate_chromeos.h"
+
+#include <algorithm>
+#include <iterator>
+
+#include "base/logging.h"
+#include "chrome/browser/chromeos/login/user_manager.h"
+#include "chrome/browser/chromeos/ui/inline_login_dialog.h"
+#include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
+#include "chrome/browser/signin/signin_manager_factory.h"
+#include "components/signin/core/browser/mutable_profile_oauth2_token_service.h"
+#include "components/signin/core/browser/profile_oauth2_token_service.h"
+#include "components/signin/core/browser/signin_manager.h"
+
+namespace chromeos {
+
+UserAccountsDelegateChromeOS::UserAccountsDelegateChromeOS(
+    Profile* user_profile)
+    : user_profile_(user_profile) {
+  ProfileOAuth2TokenServiceFactory::GetForProfile(user_profile_)
+      ->AddObserver(this);
+}
+
+UserAccountsDelegateChromeOS::~UserAccountsDelegateChromeOS() {
+  ProfileOAuth2TokenServiceFactory::GetForProfile(user_profile_)
+      ->RemoveObserver(this);
+}
+
+std::string UserAccountsDelegateChromeOS::GetPrimaryAccount() {
+  return SigninManagerFactory::GetForProfile(user_profile_)
+      ->GetAuthenticatedUsername();

[Roger Tawa OOO till Jul 10th, 2014/04/28 19:06:22]

What is the intent of the return value?  Will the string be used to display
something to the user, or this just an id for internal purposes?  If the former,
I would rename GetPrimaryAccount() --> GetPrimaryUsermame().

If the later, use ->GetAuthenticatedAccountId() instead and rename to
GetPrimaryAccountId().

[dzhioev (left Google), 2014/04/28 19:49:17]

It is used as ID and isn't displayed to user. The value that is displayed to
user can be retrieved by call to GetAccountDisplayName. 

If I use GetAuthenticatedAccountId here how can I convert it to corresponding
account name in GetAccountDisplayName (comment to GetAuthenticatedAccountId says
that it will be returning some obfuscated value in future)?

[Roger Tawa OOO till Jul 10th, 2014/04/29 00:03:25]

Today username == account_id, so the code will work.  When chrome uses the gaia
obfuscated id as |account_id| this will need to be updated, but so will a lot of
places in chrome.  (The |User| class should have an |account_id()| method.)

So I still think its best to call GetAuthenticatedAccountId() here.

[dzhioev (left Google), 2014/04/29 12:23:58]

Done, used GetAuthenticatedAccountId here and renamed methods.

+}
+
+std::vector<std::string>
+UserAccountsDelegateChromeOS::GetSecondaryAccountsList() {
+  ProfileOAuth2TokenService* token_service =
+      ProfileOAuth2TokenServiceFactory::GetForProfile(user_profile_);
+  std::vector<std::string> accounts = token_service->GetAccounts();
+  // Filter primary account.
+  std::vector<std::string>::iterator it =
+      std::remove(accounts.begin(), accounts.end(), GetPrimaryAccount());
+  LOG_IF(WARNING, std::distance(it, accounts.end()) != 1)
+      << "Found " << std::distance(it, accounts.end())
+      << " primary accounts in the account list.";
+  accounts.erase(it, accounts.end());
+  return accounts;
+}

[Roger Tawa OOO till Jul 10th, 2014/04/28 19:06:22]

Same question as above.  Also I'd suggest changing the function to be called
either GetSecondaryUsernames() or GetSecondaryAccountIds() as appropriate.

[dzhioev (left Google), 2014/04/29 12:23:58]

Done.

+
+std::string UserAccountsDelegateChromeOS::GetAccountDisplayName(
+    const std::string& account_id) {
+  User* user = UserManager::Get()->GetUserByProfile(user_profile_);
+  if (user->email() == account_id && !user->display_email().empty())

[Roger Tawa OOO till Jul 10th, 2014/04/29 00:03:25]

Instead of using std::string::op==(), please use gaia::AreEmailsSame() to
compare emails.

[dzhioev (left Google), 2014/04/29 12:23:58]

Done.

+    return user->display_email();
+  return account_id;
+}
+
+void UserAccountsDelegateChromeOS::DeleteAccount(
+    const std::string& account_id) {
+  MutableProfileOAuth2TokenService* oauth2_token_service =
+      ProfileOAuth2TokenServiceFactory::GetPlatformSpecificForProfile(
+          user_profile_);
+  oauth2_token_service->RevokeCredentials(account_id);
+}
+
+void UserAccountsDelegateChromeOS::LaunchAddAccountDialog() {
+  ui::InlineLoginDialog::Show(user_profile_);
+}
+
+void UserAccountsDelegateChromeOS::OnRefreshTokenAvailable(
+    const std::string& account_id) {
+  NotifyAccountListChanged();
+}
+
+void UserAccountsDelegateChromeOS::OnRefreshTokenRevoked(
+    const std::string& account_id) {
+  NotifyAccountListChanged();
+}
+
+}  // namespace chromeos