Pipe a bit down to the InstantExtended new tab page javascript API for whether or not the app launc…

chrome/common/render_messages.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.
 
 // Multiply-included file, no traditional include guard.
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 337 matching lines @@
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_SearchBoxSetDisplayInstantResults,
                     bool /* display_instant_results */)
 
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_SearchBoxThemeChanged,
                     ThemeBackgroundInfo /* value */)
 
 IPC_MESSAGE_ROUTED2(ChromeViewMsg_SearchBoxFontInformation,
                     string16 /* omnibox_font */,
                     size_t /* omnibox_font_size */)
 
+IPC_MESSAGE_ROUTED1(ChromeViewMsg_SearchBoxPromoInformation,
+                    bool /* is_app_launcher_enabled */)
+
 IPC_MESSAGE_ROUTED2(ChromeViewMsg_SearchBoxFocusChanged,
                     OmniboxFocusState /* new_focus_state */,
                     OmniboxFocusChangeReason /* reason */)
 
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_SearchBoxSetInputInProgress,
                     bool /* input_in_progress */)
 
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_SearchBoxMostVisitedItemsChanged,
                     std::vector<InstantMostVisitedItem> /* items */)
 
@@ skipping 372 matching lines @@
 // previous SetCookie message to be processed.
 IPC_SYNC_MESSAGE_ROUTED2_1(ChromeViewHostMsg_GetCookies,
                            GURL /* url */,
                            GURL /* first_party_for_cookies */,
                            std::string /* cookies */)
 
 // Provide the browser process with current renderer framerate.
 IPC_MESSAGE_CONTROL2(ChromeViewHostMsg_FPS,
                      int /* routing id */,
                      float /* frames per second */)