[Signin Error Dialog] (2/3) Added handlers and UI constructors

chrome/browser/ui/webui/signin/inline_login_handler.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/signin/inline_login_handler.h"
 
 #include <limits.h>
 
 #include "base/bind.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/signin/gaia_auth_extension_loader.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/signin/signin_promo.h"
-#include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_navigator.h"
 #include "chrome/browser/ui/browser_navigator_params.h"
 #include "chrome/browser/ui/signin_view_controller_delegate.h"
 #include "chrome/browser/ui/user_manager.h"
+#include "chrome/browser/ui/webui/signin/signin_utils.h"
 #include "chrome/common/pref_names.h"
 #include "components/metrics/metrics_pref_names.h"
 #include "components/prefs/pref_service.h"
 #include "components/signin/core/common/signin_pref_names.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui.h"
 #include "google_apis/gaia/gaia_urls.h"
 #include "net/base/url_util.h"
 
-namespace {
-
-Browser* GetDesktopBrowser(content::WebUI* web_ui) {
-  Browser* browser = chrome::FindBrowserWithWebContents(
-      web_ui->GetWebContents());
-  if (!browser)
-    browser = chrome::FindLastActiveWithProfile(Profile::FromWebUI(web_ui));
-  return browser;
-}
-
-}  // namespace
-
 InlineLoginHandler::InlineLoginHandler() : weak_ptr_factory_(this) {}
 
 InlineLoginHandler::~InlineLoginHandler() {}
 
 void InlineLoginHandler::RegisterMessages() {
   web_ui()->RegisterMessageCallback("initialize",
       base::Bind(&InlineLoginHandler::HandleInitializeMessage,
                   base::Unretained(this)));
   web_ui()->RegisterMessageCallback("completeLogin",
       base::Bind(&InlineLoginHandler::HandleCompleteLoginMessage,
@@ skipping 216 matching lines @@
       net::AppendOrReplaceQueryParameter(
           main_frame_url, signin::kSignInPromoQueryKeyConstrained, "0"),
       ui::PAGE_TRANSITION_AUTO_TOPLEVEL);
   chrome::Navigate(&params);
 
   web_ui()->CallJavascriptFunctionUnsafe("inline.login.closeDialog");
 }
 
 void InlineLoginHandler::HandleNavigationButtonClicked(
     const base::ListValue* args) {
-  Browser* browser = GetDesktopBrowser(web_ui());
+  Browser* browser = signin::GetDesktopBrowser(web_ui());
   DCHECK(browser);
 
   browser->signin_view_controller()->delegate()->PerformNavigation();
 }
 
 void InlineLoginHandler::HandleDialogClose(const base::ListValue* args) {
-  Browser* browser = GetDesktopBrowser(web_ui());
+  Browser* browser = signin::GetDesktopBrowser(web_ui());
   // If the dialog was opened in the User Manager browser will be null here.
   if (browser)
     browser->CloseModalSigninWindow();
 
   // Does nothing if user manager is not showing.
   UserManager::HideReauthDialog();
 }