Move impl of identity.GetProfileUserInfo() extension API to its own file

chrome/browser/extensions/api/identity/identity_get_profile_user_info_function.cc

+// Copyright 2017 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/extensions/api/identity/identity_get_profile_user_info_function.h"
+
+#include "chrome/browser/extensions/api/identity/identity_constants.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/signin/signin_manager_factory.h"
+#include "chrome/common/extensions/api/identity.h"
+#include "components/signin/core/browser/signin_manager.h"
+#include "extensions/common/extension.h"
+#include "extensions/common/permissions/permissions_data.h"
+
+namespace extensions {
+
+IdentityGetProfileUserInfoFunction::IdentityGetProfileUserInfoFunction() {
+}
+
+IdentityGetProfileUserInfoFunction::~IdentityGetProfileUserInfoFunction() {
+}
+
+ExtensionFunction::ResponseAction IdentityGetProfileUserInfoFunction::Run() {
+  if (GetProfile()->IsOffTheRecord()) {
+    return RespondNow(Error(identity_constants::kOffTheRecord));
+  }
+
+  AccountInfo account = SigninManagerFactory::GetForProfile(
+      GetProfile())->GetAuthenticatedAccountInfo();
+  api::identity::ProfileUserInfo profile_user_info;
+  if (extension()->permissions_data()->HasAPIPermission(
+          APIPermission::kIdentityEmail)) {
+    profile_user_info.email = account.email;
+    profile_user_info.id = account.gaia;
+  }
+
+  return RespondNow(OneArgument(profile_user_info.ToValue()));
+}
+
+}  // namespace extensions