Reland r242290, r241609, r242134.

chrome/browser/ui/webui/chromeos/login/inline_login_handler_chromeos.cc

+// Copyright 2013 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/webui/chromeos/login/inline_login_handler_chromeos.h"
+
+#include "chrome/browser/chromeos/login/oauth2_token_fetcher.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/signin/profile_oauth2_token_service.h"
+#include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
+#include "content/public/browser/web_ui.h"
+
+namespace chromeos {
+
+class InlineLoginHandlerChromeOS::InlineLoginUIOAuth2Delegate
+    : public OAuth2TokenFetcher::Delegate {
+ public:
+  explicit InlineLoginUIOAuth2Delegate(content::WebUI* web_ui)
+      : web_ui_(web_ui) {}
+  virtual ~InlineLoginUIOAuth2Delegate() {}
+
+  // OAuth2TokenFetcher::Delegate overrides:
+  virtual void OnOAuth2TokensAvailable(
+      const GaiaAuthConsumer::ClientOAuthResult& oauth2_tokens) OVERRIDE {
+    // Closes sign-in dialog before update token service. Token service update
+    // might trigger a permission dialog and if this dialog does not close,
+    // a DCHECK would be triggered because attempting to activate a window
+    // while there is a modal dialog.
+    web_ui_->CallJavascriptFunction("inline.login.closeDialog");
+
+    Profile* profile = Profile::FromWebUI(web_ui_);
+    ProfileOAuth2TokenService* token_service =
+        ProfileOAuth2TokenServiceFactory::GetForProfile(profile);
+    token_service->UpdateCredentials(token_service->GetPrimaryAccountId(),
+                                     oauth2_tokens.refresh_token);
+  }
+
+  virtual void OnOAuth2TokensFetchFailed() OVERRIDE {
+    LOG(ERROR) << "Failed to fetch oauth2 token with inline login.";
+    web_ui_->CallJavascriptFunction("inline.login.handleOAuth2TokenFailure");
+  }
+
+ private:
+  content::WebUI* web_ui_;
+};
+
+InlineLoginHandlerChromeOS::InlineLoginHandlerChromeOS() {}
+
+InlineLoginHandlerChromeOS::~InlineLoginHandlerChromeOS() {}
+
+void InlineLoginHandlerChromeOS::CompleteLogin(const base::ListValue* args) {
+  Profile* profile = Profile::FromWebUI(web_ui());
+
+  oauth2_delegate_.reset(new InlineLoginUIOAuth2Delegate(web_ui()));
+  oauth2_token_fetcher_.reset(new OAuth2TokenFetcher(
+      oauth2_delegate_.get(), profile->GetRequestContext()));
+  oauth2_token_fetcher_->StartExchangeFromCookies();
+}
+
+} // namespace chromeos