printing: Sandboxed processes must ask the browser to allocate shared memory.

components/printing/renderer/print_web_view_helper.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 <stdint.h>
 #include <string>
 #include <utility>
@@ skipping 1793 matching lines @@
 }
 #endif  // !defined(OS_MACOSX)
 
 bool PrintWebViewHelper::CopyMetafileDataToSharedMem(
     const PdfMetafileSkia& metafile,
     base::SharedMemoryHandle* shared_mem_handle) {
   uint32_t buf_size = metafile.GetDataSize();
   if (buf_size == 0)
     return false;
 
-#if defined(OS_WIN)
-  base::SharedMemory shared_buf;
-  // Allocate a shared memory buffer to hold the generated metafile data.
-  if (!shared_buf.CreateAndMapAnonymous(buf_size))
-    return false;
-
-  // Copy the bits into shared memory.
-  if (!metafile.GetData(shared_buf.memory(), buf_size))
-    return false;
-
-  *shared_mem_handle = base::SharedMemory::DuplicateHandle(shared_buf.handle());
-  return true;
-#else
   scoped_ptr<base::SharedMemory> shared_buf(
       content::RenderThread::Get()->HostAllocateSharedMemoryBuffer(buf_size));
   if (!shared_buf)
     return false;
 
   if (!shared_buf->Map(buf_size))
     return false;
 
   if (!metafile.GetData(shared_buf->memory(), buf_size))
     return false;
 
-  return shared_buf->GiveToProcess(base::GetCurrentProcessHandle(),
-                                   shared_mem_handle);
-#endif  // defined(OS_WIN)
+  *shared_mem_handle =
+      base::SharedMemory::DuplicateHandle(shared_buf->handle());
+  return true;
 }
 
 #if defined(ENABLE_PRINT_PREVIEW)
 void PrintWebViewHelper::ShowScriptedPrintPreview() {
   if (is_scripted_preview_delayed_) {
     is_scripted_preview_delayed_ = false;
     Send(new PrintHostMsg_ShowScriptedPrintPreview(
         routing_id(), print_preview_context_.IsModifiable()));
   }
 }
@@ skipping 402 matching lines @@
       blink::WebConsoleMessage::LevelWarning, message));
   return false;
 }
 
 void PrintWebViewHelper::ScriptingThrottler::Reset() {
   // Reset counter on successful print.
   count_ = 0;
 }
 
 }  // namespace printing