Migrated ChromeViewHostMsg_PageHasOSDD to Mojo.

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 <stdint.h>
 #include <string>
 #include <vector>
 
 #include "base/files/file_path.h"
@@ skipping 331 matching lines @@
 // the plugin.
 IPC_MESSAGE_ROUTED0(ChromeViewMsg_CancelledDownloadingPlugin)
 
 // Tells the browser to show the Flash permission bubble in the same tab.
 IPC_MESSAGE_ROUTED0(ChromeViewHostMsg_ShowFlashPermissionBubble)
 
 // Tells the browser that there was an error loading a plugin.
 IPC_MESSAGE_ROUTED1(ChromeViewHostMsg_CouldNotLoadPlugin,
                     base::FilePath /* plugin_path */)
 
-// Notification that the page has an OpenSearch description document
-// associated with it.
-IPC_MESSAGE_ROUTED2(ChromeViewHostMsg_PageHasOSDD,
-                    GURL /* page_url */,
-                    GURL /* osdd_url */)
-
 // Notifies when a plugin couldn't be loaded because it's outdated.
 IPC_MESSAGE_ROUTED2(ChromeViewHostMsg_BlockedOutdatedPlugin,
                     int /* placeholder ID */,
                     std::string /* plugin group identifier */)
 
 // Notifies when a plugin couldn't be loaded because it requires a component
 // update.
 IPC_MESSAGE_ROUTED2(ChromeViewHostMsg_BlockedComponentUpdatedPlugin,
                     int /* placeholder ID */,
                     std::string /* plugin group identifier */)
@@ skipping 15 matching lines @@
 // process so that they can be assigned to an Instant renderer.
 IPC_MESSAGE_CONTROL2(ChromeViewMsg_SetSearchURLs,
                      std::vector<GURL> /* search_urls */,
                      GURL /* new_tab_page_url */)
 
 #if BUILDFLAG(ENABLE_PLUGINS)
 // Sent by the renderer to check if crash reporting is enabled.
 IPC_SYNC_MESSAGE_CONTROL0_1(ChromeViewHostMsg_IsCrashReportingEnabled,
                             bool /* enabled */)
 #endif