Remove PrintMsg_PrintPage_Params.

components/printing/common/print_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.
 
 // IPC messages for printing.
 // Multiply-included message file, hence no include guard.
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 150 matching lines @@
   // URL string to be printed as footer if requested by the user.
   IPC_STRUCT_TRAITS_MEMBER(url)
 
   // Whether to rasterize a PDF for printing
   IPC_STRUCT_TRAITS_MEMBER(rasterize_pdf)
 
   // True if print backgrounds is requested by the user.
   IPC_STRUCT_TRAITS_MEMBER(should_print_backgrounds)
 IPC_STRUCT_TRAITS_END()
 
-IPC_STRUCT_BEGIN(PrintMsg_PrintPage_Params)
-  // Parameters to render the page as a printed page. It must always be the same
-  // value for all the document.
-  IPC_STRUCT_MEMBER(PrintMsg_Print_Params, params)
-
-  // The page number is the indicator of the square that should be rendered
-  // according to the layout specified in PrintMsg_Print_Params.
-  IPC_STRUCT_MEMBER(int, page_number)
-IPC_STRUCT_END()
-
 IPC_STRUCT_TRAITS_BEGIN(printing::PageRange)
   IPC_STRUCT_TRAITS_MEMBER(from)
   IPC_STRUCT_TRAITS_MEMBER(to)
 IPC_STRUCT_TRAITS_END()
 
 #if BUILDFLAG(ENABLE_PRINT_PREVIEW)
 IPC_STRUCT_TRAITS_BEGIN(PrintHostMsg_RequestPrintPreview_Params)
   IPC_STRUCT_TRAITS_MEMBER(is_modifiable)
   IPC_STRUCT_TRAITS_MEMBER(webnode_only)
   IPC_STRUCT_TRAITS_MEMBER(has_selection)
@@ skipping 292 matching lines @@
 
 // Tell the browser to show the print preview, when the document is sufficiently
 // loaded such that the renderer can determine whether it is modifiable or not.
 IPC_MESSAGE_ROUTED1(PrintHostMsg_ShowScriptedPrintPreview,
                     bool /* is_modifiable */)
 
 // Notify the browser to set print presets based on source PDF document.
 IPC_MESSAGE_ROUTED1(PrintHostMsg_SetOptionsFromDocument,
                     PrintHostMsg_SetOptionsFromDocument_Params /* params */)
 #endif  // BUILDFLAG(ENABLE_PRINT_PREVIEW)