Unifying NativeMetafile class interface (as much as possible) for Linux, Mac, Win

chrome/plugin/webplugin_delegate_stub.cc

 // Copyright (c) 2011 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 "chrome/plugin/webplugin_delegate_stub.h"
 
 #include "build/build_config.h"
 
 #include "base/command_line.h"
 #include "chrome/common/child_process_logging.h"
@@ skipping 259 matching lines @@
 
 void WebPluginDelegateStub::OnPrint(base::SharedMemoryHandle* shared_memory,
                                     uint32* size) {
 #if defined(OS_WIN)
   scoped_ptr<printing::NativeMetafile> metafile(
       printing::NativeMetafileFactory::CreateMetafile());
   if (!metafile->CreateDc(NULL, NULL)) {
     NOTREACHED();
     return;
   }
-  HDC hdc = metafile->hdc();
+  HDC hdc = metafile->context();
   skia::PlatformDevice::InitializeDC(hdc);
   delegate_->Print(hdc);
-  if (!metafile->CloseDc()) {
+  if (!metafile->Close()) {
     NOTREACHED();
     return;
   }
 
   *size = metafile->GetDataSize();
   DCHECK(*size);
   base::SharedMemory shared_buf;
   CreateSharedBuffer(*size, &shared_buf, shared_memory);
 
   // Retrieve a copy of the data.
@@ skipping 148 matching lines @@
   webplugin_->OnResourceCreated(resource_id, resource_client);
 }
 
 #if defined(OS_MACOSX)
 void WebPluginDelegateStub::OnSetFakeAcceleratedSurfaceWindowHandle(
     gfx::PluginWindowHandle window) {
   delegate_->set_windowed_handle(window);
 }
 #endif