NaCl: Supply Windows handle-passing function

chrome/renderer/chrome_ppapi_interfaces.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 "chrome/renderer/chrome_ppapi_interfaces.h"
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/rand_util_c.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/renderer/chrome_ppb_pdf_impl.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/renderer/render_thread.h"
 #include "ipc/ipc_sync_message_filter.h"
 #include "ppapi/c/private/ppb_nacl_private.h"
 #include "ppapi/c/private/ppb_pdf.h"
 #include "webkit/plugins/ppapi/ppapi_interface_factory.h"
 
 #if !defined(DISABLE_NACL)
 #include "native_client/src/shared/imc/nacl_imc.h"
 #include "ppapi/native_client/src/trusted/plugin/nacl_entry_points.h"
 #endif
 
+#if defined(OS_WIN)
+#include "content/common/sandbox_policy.h"
+#endif
+
 using content::RenderThread;
 
 namespace chrome {
 
 #if !defined(DISABLE_NACL)
 namespace {
 base::LazyInstance<scoped_refptr<IPC::SyncMessageFilter> >
     g_background_thread_sender = LAZY_INSTANCE_INITIALIZER;
 }  // namespace
 
@@ skipping 35 matching lines @@
 
 bool Are3DInterfacesDisabled() {
   return CommandLine::ForCurrentProcess()->HasSwitch(switches::kDisable3DAPIs);
 }
 
 void EnableBackgroundSelLdrLaunch() {
   g_background_thread_sender.Get() =
       RenderThread::Get()->GetSyncMessageFilter();
 }
 
+int BrokerDuplicateHandle(void* source_handle,
+                          unsigned int process_id,
+                          void** target_handle,
+                          unsigned int desired_access,
+                          unsigned int options) {
+#if defined(OS_WIN)
+  return sandbox::BrokerDuplicateHandle(source_handle, process_id,
+                                        target_handle, desired_access,
+                                        options);
+#else
+  return 0;
+#endif
+}
+
 const PPB_NaCl_Private ppb_nacl = {
   &LaunchSelLdr,
   &UrandomFD,
   &Are3DInterfacesDisabled,
   &EnableBackgroundSelLdrLaunch,
+  &BrokerDuplicateHandle,
 };
 
 class PPB_NaCl_Impl {
  public:
   // Returns a pointer to the interface implementing PPB_NaCl_Private that is
   // exposed to the plugin.
   static const PPB_NaCl_Private* GetInterface() {
     return &ppb_nacl;
   }
 };
 #endif  // DISABLE_NACL
 
 const void* ChromePPAPIInterfaceFactory(const std::string& interface_name) {
 #if !defined(DISABLE_NACL)
   if (interface_name == PPB_NACL_PRIVATE_INTERFACE)
     return chrome::PPB_NaCl_Impl::GetInterface();
 #endif  // DISABLE_NACL
   if (interface_name == PPB_PDF_INTERFACE)
     return chrome::PPB_PDF_Impl::GetInterface();
   return NULL;
 }
 
 }  // namespace chrome