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

components/printing/renderer/print_web_view_helper.cc

Index: components/printing/renderer/print_web_view_helper.cc
diff --git a/components/printing/renderer/print_web_view_helper.cc b/components/printing/renderer/print_web_view_helper.cc
index 91c72303c93818c2e93668d37be2479ac0c2f506..0a4d1eee41828dff4c84bc857b656243a77e9139 100644
--- a/components/printing/renderer/print_web_view_helper.cc
+++ b/components/printing/renderer/print_web_view_helper.cc
@@ -1811,19 +1811,6 @@ bool PrintWebViewHelper::CopyMetafileDataToSharedMem(
   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)
@@ -1835,9 +1822,9 @@ bool PrintWebViewHelper::CopyMetafileDataToSharedMem(
   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)