Implement the new Sync Confirmation dialog on Linux and Windows.

chrome/browser/ui/webui/signin/sync_confirmation_handler.cc

Index: chrome/browser/ui/webui/signin/sync_confirmation_handler.cc
diff --git a/chrome/browser/ui/webui/signin/sync_confirmation_handler.cc b/chrome/browser/ui/webui/signin/sync_confirmation_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..88728ffbf89dd7c17107156d64a0eb54c8d0e134
--- /dev/null
+++ b/chrome/browser/ui/webui/signin/sync_confirmation_handler.cc
@@ -0,0 +1,108 @@
+// Copyright 2015 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/sync_confirmation_handler.h"
+
+#include "base/bind.h"
+#include "chrome/browser/profiles/profile_avatar_icon_util.h"
+#include "chrome/browser/signin/account_tracker_service_factory.h"
+#include "chrome/browser/signin/signin_manager_factory.h"
+#include "chrome/browser/ui/browser_finder.h"
+#include "chrome/browser/ui/browser_window.h"
+#include "chrome/browser/ui/webui/signin/login_ui_service_factory.cc"
+#include "components/signin/core/browser/account_tracker_service.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/browser/web_ui.h"
+#include "url/gurl.h"
+
+namespace {
+
+const int kProfileImageSize = 128;
+
+Browser* GetDesktopBrowser(content::WebUI* web_ui) {
+  Browser* browser = chrome::FindBrowserWithWebContents(
+      web_ui->GetWebContents());
+  if (!browser) {
+    browser = chrome::FindLastActiveWithProfile(
+        Profile::FromWebUI(web_ui), chrome::GetActiveDesktop());
+  }
+  DCHECK(browser);
+  return browser;
+}
+
+void CloseModalSigninWindow(content::WebUI* web_ui,

[Dan Beam, 2016/01/13 23:45:22]

nit: instead of putting this in an anonymous namespace and passing in a WebUI,
maybe just make it a private instance method with access to web_ui()

[anthonyvd, 2016/01/18 21:40:08]

Done.

+    LoginUIService::SyncConfirmationUIClosedResults results) {
+  Browser* browser = GetDesktopBrowser(web_ui);
+  LoginUIServiceFactory::GetForProfile(browser->profile())->
+      SyncConfirmationUIClosed(results);
+  browser->window()->CloseModalSigninWindow();
+}
+
+}  // namespace
+
+SyncConfirmationHandler::SyncConfirmationHandler() {}
+
+SyncConfirmationHandler::~SyncConfirmationHandler() {
+  Profile* profile = Profile::FromWebUI(web_ui());
+  AccountTrackerServiceFactory::GetForProfile(profile)->RemoveObserver(this);

[Dan Beam, 2016/01/13 23:45:22]

is it safe to RemoveObserver() if it was never added?

[anthonyvd, 2016/01/18 21:40:08]

It looks like it is. ObserverList only performs the erase when it actually finds
the item:
https://code.google.com/p/chromium/codesearch#chromium/src/base/observer_list...

+}
+
+void SyncConfirmationHandler::RegisterMessages() {
+  web_ui()->RegisterMessageCallback("confirm",
+      base::Bind(&SyncConfirmationHandler::HandleConfirm,
+                 base::Unretained(this)));
+  web_ui()->RegisterMessageCallback("undo",
+      base::Bind(&SyncConfirmationHandler::HandleUndo, base::Unretained(this)));
+  web_ui()->RegisterMessageCallback("initialized",
+      base::Bind(&SyncConfirmationHandler::HandleInitialized,
+                 base::Unretained(this)));
+  web_ui()->RegisterMessageCallback("goToSettings",
+      base::Bind(&SyncConfirmationHandler::HandleGoToSettings,
+                 base::Unretained(this)));
+}
+
+void SyncConfirmationHandler::HandleConfirm(const base::ListValue* args) {
+  CloseModalSigninWindow(web_ui(), LoginUIService::SYNC_WITH_DEFAULT_SETTINGS);
+}
+
+void SyncConfirmationHandler::HandleGoToSettings(const base::ListValue* args) {
+  CloseModalSigninWindow(web_ui(), LoginUIService::CONFIGURE_SYNC_FIRST);
+}
+
+void SyncConfirmationHandler::HandleUndo(const base::ListValue* args) {
+  CloseModalSigninWindow(web_ui(), LoginUIService::ABORT_SIGNIN);
+  SigninManagerFactory::GetForProfile(Profile::FromWebUI(web_ui()))->SignOut(
+      signin_metrics::ABORT_SIGNIN);
+}
+
+void SyncConfirmationHandler::HandleInitialized(const base::ListValue* args) {
+  Browser* browser = GetDesktopBrowser(web_ui());
+  Profile* profile = browser->profile();
+  AccountInfo info = AccountTrackerServiceFactory::GetForProfile(profile)->
+      GetAccounts()[0];
+
+  if (!info.IsValid())
+    AccountTrackerServiceFactory::GetForProfile(profile)->AddObserver(this);
+  else
+    SetUserImageURL(info.picture_url);
+}
+
+void SyncConfirmationHandler::SetUserImageURL(const std::string& picture_url) {
+  GURL url;
+  if (profiles::GetImageURLWithThumbnailSize(GURL(picture_url),
+                                             kProfileImageSize,
+                                             &url)) {
+    base::StringValue picture_url_value(url.spec());
+    web_ui()->CallJavascriptFunction(
+        "sync.confirmation.setUserImageURL", picture_url_value);
+  }
+}
+
+void SyncConfirmationHandler::OnAccountUpdated(const AccountInfo& info) {
+  DCHECK(info.IsValid());
+  Profile* profile = Profile::FromWebUI(web_ui());
+  AccountTrackerServiceFactory::GetForProfile(profile)->RemoveObserver(this);
+
+  SetUserImageURL(info.picture_url);
+}