Cleanup the remaining references to source_view_id

content/common/frame_messages.h

 // Copyright 2013 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.
 
 // IPC messages for interacting with frames.
 // Multiply-included message file, hence no include guard.
 
 #include "cc/surfaces/surface_id.h"
 #include "cc/surfaces/surface_sequence.h"
 #include "content/common/content_export.h"
@@ skipping 221 matching lines @@
   IPC_STRUCT_MEMBER(bool, is_data_raw_string)
 
   // The serialized script value.
   IPC_STRUCT_MEMBER(base::string16, data)
 
   // When sent to the browser, this is the routing ID of the source frame in
   // the source process.  The browser replaces it with the routing ID of the
   // equivalent frame proxy in the destination process.
   IPC_STRUCT_MEMBER(int, source_routing_id)
 
-  // When sent from the browser, this is the routing ID of the source view in
-  // the destination process.  This currently exists only to support legacy
-  // postMessage to Android WebView and will be removed once crbug.com/473258
-  // is fixed.
-  IPC_STRUCT_MEMBER(int, source_view_routing_id)
-
   // The origin of the source frame.
   IPC_STRUCT_MEMBER(base::string16, source_origin)
 
   // The origin for the message's target.
   IPC_STRUCT_MEMBER(base::string16, target_origin)
 
   // Information about the MessagePorts this message contains.
   IPC_STRUCT_MEMBER(std::vector<content::TransferredMessagePort>, message_ports)
   IPC_STRUCT_MEMBER(std::vector<int>, new_routing_ids)
 IPC_STRUCT_END()
@@ skipping 767 matching lines @@
                     FrameMsg_PostMessage_Params)
 
 #if defined(OS_MACOSX) || defined(OS_ANDROID)
 
 // Message to show/hide a popup menu using native controls.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_ShowPopup,
                     FrameHostMsg_ShowPopup_Params)
 IPC_MESSAGE_ROUTED0(FrameHostMsg_HidePopup)
 
 #endif