Add support for a "split" incognito behavior for extensions.

chrome/common/render_messages_internal.h

 // Copyright (c) 2010 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.
 
 // This header is meant to be included in multiple passes, hence no traditional
 // header guard.
 // See ipc_message_macros.h for explanation of the macros and passes.
 
 #include <map>
 #include <string>
@@ skipping 728 matching lines @@
                        std::string /* extension_id */,
                        std::vector<std::string> /* permissions */)
 
   // Tell the renderer process which host permissions the given extension has.
   IPC_MESSAGE_CONTROL2(
       ViewMsg_Extension_SetHostPermissions,
       GURL /* source extension's origin */,
       std::vector<URLPattern> /* URLPatterns the extension can access */)
 
   // Tell the renderer process that the given extension is enabled or disabled
-  // for incognito mode.
-  IPC_MESSAGE_CONTROL2(ViewMsg_Extension_ExtensionSetIncognitoEnabled,
+  // for incognito mode, and what kind of incognito behavior it has.
+  IPC_MESSAGE_CONTROL3(ViewMsg_Extension_ExtensionSetIncognitoEnabled,
                        std::string /* extension_id */,
-                       bool /* enabled */)
+                       bool /* enabled */,
+                       bool /* incognito_split_mode */)
 
   // Tell the renderer process all known page action ids for a particular
   // extension.
   IPC_MESSAGE_CONTROL2(ViewMsg_Extension_UpdatePageActions,
                        std::string /* extension_id */,
                        std::vector<std::string> /* page_action_ids */)
 
   // Changes the text direction of the currently selected input field (if any).
   IPC_MESSAGE_ROUTED1(ViewMsg_SetTextDirection,
                       WebKit::WebTextDirection /* direction */)
@@ skipping 1963 matching lines @@
   // Registers a blob URL referring to the blob data identified by the specified
   // source URL.
   IPC_MESSAGE_CONTROL2(ViewHostMsg_RegisterBlobUrlFrom,
                        GURL /* url */,
                        GURL /* src_url */)
 
   // Unregister a blob URL.
   IPC_MESSAGE_CONTROL1(ViewHostMsg_UnregisterBlobUrl, GURL /* url */)
 
 IPC_END_MESSAGES(ViewHost)