InstantExtended: Add js api for custom logo.

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 618 matching lines @@
 IPC_MESSAGE_ROUTED2(ChromeViewHostMsg_SetSuggestions,
                     int /* page_id */,
                     std::vector<InstantSuggestion> /* suggestions */)
 
 // Sent by the Instant preview indicating whether the page supports the Instant
 // API or not (http://dev.chromium.org/searchbox).
 IPC_MESSAGE_ROUTED2(ChromeViewHostMsg_InstantSupportDetermined,
                     int /* page_id */,
                     bool /* result */)
 
+// Sent by the Instant preview to indicate that a search provider wants to
+// display a custom logo on the NTP.
+IPC_MESSAGE_ROUTED2(ChromeViewHostMsg_SetHasCustomLogo,
+                    int /* page_id */,
+                    bool /* has_logo */);
+
 // Sent by the Instant preview asking to resize itself to the given height.
 IPC_MESSAGE_ROUTED3(ChromeViewHostMsg_SetInstantPreviewHeight,
                     int /* page_id */,
                     int /* height */,
                     InstantSizeUnits /* units */)
 
 // The currently displayed PDF has an unsupported feature.
 IPC_MESSAGE_ROUTED0(ChromeViewHostMsg_PDFHasUnsupportedFeature)
 
 // This message indicates the error appeared in the frame.
@@ skipping 16 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 */)