About page UI: add confirmation message for release channel switch.

chrome/browser/ui/webui/help/help_handler.cc

 // Copyright (c) 2012 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/help/help_handler.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 132 matching lines @@
     { "reportAnIssue", IDS_REPORT_AN_ISSUE },
 #if defined(OS_CHROMEOS)
     { "platform", IDS_PLATFORM_LABEL },
     { "firmware", IDS_ABOUT_PAGE_FIRMWARE },
     { "showMoreInfo", IDS_SHOW_MORE_INFO },
     { "hideMoreInfo", IDS_HIDE_MORE_INFO },
     { "channel", IDS_ABOUT_PAGE_CHANNEL },
     { "stable", IDS_ABOUT_PAGE_CHANNEL_STABLE },
     { "beta", IDS_ABOUT_PAGE_CHANNEL_BETA },
     { "dev", IDS_ABOUT_PAGE_CHANNEL_DEVELOPMENT },
+    { "channel-changed", IDS_ABOUT_PAGE_CHANNEL_CHANGED },
     { "webkit", IDS_WEBKIT },
     { "userAgent", IDS_ABOUT_VERSION_USER_AGENT },
     { "commandLine", IDS_ABOUT_VERSION_COMMAND_LINE },
     { "buildDate", IDS_ABOUT_VERSION_BUILD_DATE },
 #endif
 #if defined(OS_MACOSX)
     { "promote", IDS_ABOUT_CHROME_PROMOTE_UPDATER },
     { "learnMore", IDS_LEARN_MORE },
 #endif
   };
@@ skipping 156 matching lines @@
 
   const std::string channel = UTF16ToUTF8(ExtractStringValue(args));
   version_updater_->SetReleaseChannel(channel);
   // On enterprise machines we can only use SetReleaseChannel to store the
   // user choice in the lsb-release file but we can not modify the policy blob.
   // Therefore we only call SetString if the device is locally owned and the
   // currently logged in user is the owner.
   if (chromeos::UserManager::Get()->IsCurrentUserOwner()) {
     chromeos::CrosSettings::Get()->SetString(chromeos::kReleaseChannel,
                                              channel);
+    // Check for update after switching release channel.
+    version_updater_->CheckForUpdate(base::Bind(&HelpHandler::SetUpdateStatus,
+                                                base::Unretained(this)));
   }
 }
 
 #endif  // defined(OS_CHROMEOS)
 
 void HelpHandler::SetUpdateStatus(VersionUpdater::Status status,
                                   int progress, const string16& message) {
   // Only UPDATING state should have progress set.
   DCHECK(status == VersionUpdater::UPDATING || progress == 0);
 
@@ skipping 94 matching lines @@
 
     // Note that this string will be internationalized.
     string16 build_date = base::TimeFormatFriendlyDate(time);
     g_build_date_string = Value::CreateStringValue(build_date);
   }
 
   web_ui()->CallJavascriptFunction("help.HelpPage.setBuildDate",
                                    *g_build_date_string);
 }
 #endif // defined(OS_CHROMEOS)