tabId support to chrome.extensions.getViews()

extensions/common/constants.h

 // 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.
 
 #ifndef EXTENSIONS_COMMON_CONSTANTS_H_
 #define EXTENSIONS_COMMON_CONSTANTS_H_
 
 #include "base/files/file_path.h"
 #include "ui/base/layout.h"
 
@@ skipping 152 matching lines @@
   // For platform apps, which don't actually have a container (they just get a
   // "onLaunched" event).
   LAUNCH_CONTAINER_NONE,
   NUM_LAUNCH_CONTAINERS
 };
 
 }  // namespace extensions
 
 namespace extension_misc {
 
+// Matches chrome.tabs.TAB_ID_NONE
+const int kUnknownTabId = -1;
+
 // Matches chrome.windows.WINDOW_ID_NONE.
 const int kUnknownWindowId = -1;
 
 // Matches chrome.windows.WINDOW_ID_CURRENT.
 const int kCurrentWindowId = -2;
 
 // NOTE: If you change this list, you should also change kExtensionIconSizes
 // in cc file.
 enum ExtensionIcons {
   EXTENSION_ICON_GIGANTOR = 512,
@@ skipping 24 matching lines @@
 
 // The extension id for the production version of Hangouts.
 extern const char kProdHangoutsExtensionId[];
 
 // Extension ids used by Hangouts.
 extern const char* const kHangoutsExtensionIds[6];
 
 }  // namespace extension_misc
 
 #endif  // EXTENSIONS_COMMON_CONSTANTS_H_