[Experimental] Supporting OOPIF printing

components/printing/renderer/print_web_view_helper_linux.cc

 // 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.
 
 #include "components/printing/renderer/print_web_view_helper.h"
 
 #include <stddef.h>
 
 #include "base/logging.h"
 #include "build/build_config.h"
@@ skipping 46 matching lines @@
   PrintMsg_PrintPage_Params page_params;
   page_params.params = params.params;
   for (int page_number : printed_pages) {
     page_params.page_number = page_number;
     PrintPageInternal(page_params, frame, &metafile, nullptr, nullptr, nullptr);
   }
 
   // blink::printEnd() for PDF should be called before metafile is closed.
   FinishFramePrinting();
 
-  metafile.FinishDocument();
+  metafile.FinishAllPages();
 
 #if defined(OS_ANDROID)
   int sequence_number = -1;
   base::FileDescriptor fd;
 
   // Ask the browser to open a file for us.
   Send(new PrintHostMsg_AllocateTempFileForPrinting(routing_id(),
                                                     &fd,
                                                     &sequence_number));
   if (!SaveToFD(metafile, fd))
     return false;
 
   // Tell the browser we've finished writing the file.
   Send(new PrintHostMsg_TempFileForPrintingWritten(routing_id(),
                                                    sequence_number));
   return true;
 #else
   PrintHostMsg_DidPrintPage_Params printed_page_params;
 
-  if (!CopyMetafileDataToSharedMem(
-          metafile, &printed_page_params.metafile_data_handle)) {
+  if (!CopyMetafileDataToSharedMem(metafile, &printed_page_params)) {
     return false;
   }
 
-  printed_page_params.data_size = metafile.GetDataSize();
   printed_page_params.document_cookie = params.params.document_cookie;
 
   for (size_t i = 0; i < printed_pages.size(); ++i) {
     printed_page_params.page_number = printed_pages[i];
     Send(new PrintHostMsg_DidPrintPage(routing_id(), printed_page_params));
     // Send the rest of the pages with an invalid metafile handle.
     printed_page_params.metafile_data_handle.fd = -1;
   }
   return true;
 #endif  // defined(OS_ANDROID)
 }
 #endif  // BUILDFLAG(ENABLE_BASIC_PRINTING)
 
 }  // namespace printing