App Developer Tools: Implemented separate tabs for unpacked apps and extensions.

chrome/browser/extensions/api/developer_private/developer_private_api.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/extensions/api/developer_private/developer_private_api.h"
 
 #include "base/base64.h"
 #include "base/file_util.h"
 #include "base/i18n/file_util_icu.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 1200 matching lines @@
   SetResult(dict);
 
   #define   SET_STRING(id, idr) \
     dict->SetString(id, l10n_util::GetStringUTF16(idr))
   SET_STRING("extensionSettings", IDS_MANAGE_EXTENSIONS_SETTING_WINDOWS_TITLE);
 
   SET_STRING("appsDevtoolSearch", IDS_APPS_DEVTOOL_SEARCH);
   SET_STRING("appsDevtoolNoApps", IDS_APPS_DEVTOOL_NO_APPS_INSTALLED);
   SET_STRING("appsDevtoolApps", IDS_APPS_DEVTOOL_APPS_INSTALLED);
   SET_STRING("appsDevtoolExtensions", IDS_APPS_DEVTOOL_EXTENSIONS_INSTALLED);
-  SET_STRING("appsDevtoolNoExtensions",
-             IDS_EXTENSIONS_NONE_INSTALLED);
+  SET_STRING("appsDevtoolNoExtensions", IDS_EXTENSIONS_NONE_INSTALLED);
+  SET_STRING("appsDevtoolUnpacked", IDS_APPS_DEVTOOL_UNPACKED_INSTALLED);
+  SET_STRING("appsDevtoolNoUnpacked", IDS_APPS_DEVTOOL_NO_UNPACKED_INSTALLED);
   SET_STRING("appsDevtoolTitle", IDS_APPS_DEVTOOL_TITLE);
   SET_STRING("extensionSettingsGetMoreExtensions", IDS_GET_MORE_EXTENSIONS);
   SET_STRING("extensionSettingsExtensionId", IDS_EXTENSIONS_ID);
   SET_STRING("extensionSettingsExtensionPath", IDS_EXTENSIONS_PATH);
   SET_STRING("extensionSettingsInspectViews", IDS_EXTENSIONS_INSPECT_VIEWS);
   SET_STRING("extensionSettingsInstallWarnings",
              IDS_EXTENSIONS_INSTALL_WARNINGS);
   SET_STRING("viewIncognito", IDS_EXTENSIONS_VIEW_INCOGNITO);
   SET_STRING("viewInactive", IDS_EXTENSIONS_VIEW_INACTIVE);
   SET_STRING("extensionSettingsEnable", IDS_EXTENSIONS_ENABLE);
@@ skipping 49 matching lines @@
 
   #undef   SET_STRING
   return true;
 }
 
 DeveloperPrivateGetStringsFunction::~DeveloperPrivateGetStringsFunction() {}
 
 } // namespace api
 
 } // namespace extensions