Merge definitions of PlatformFileToInt and IntToPlatformFile to one place.

webkit/plugins/ppapi/ppb_broker_impl.cc

Index: webkit/plugins/ppapi/ppb_broker_impl.cc
diff --git a/webkit/plugins/ppapi/ppb_broker_impl.cc b/webkit/plugins/ppapi/ppb_broker_impl.cc
index 7d897c7d328532e03a2006b4cf53d616b8b38851..12669cd1fa0a7cdb74503c58b0967dacda74e920 100644
--- a/webkit/plugins/ppapi/ppb_broker_impl.cc
+++ b/webkit/plugins/ppapi/ppb_broker_impl.cc
@@ -5,31 +5,17 @@
 #include "webkit/plugins/ppapi/ppb_broker_impl.h"
 
 #include "base/logging.h"
+#include "ppapi/proxy/proxy_channel.h"
 #include "webkit/plugins/ppapi/common.h"
 #include "webkit/plugins/ppapi/plugin_module.h"
 #include "webkit/plugins/ppapi/resource_helper.h"
 
+using ::ppapi::proxy::PlatformFileToInt;
 using ::ppapi::thunk::PPB_Broker_API;
 
 namespace webkit {
 namespace ppapi {
 
-namespace {
-
-// TODO(ddorwin): Put conversion functions in a common place and/or add an
-// invalid value to sync_socket.h.
-int32_t PlatformFileToInt(base::PlatformFile handle) {
-#if defined(OS_WIN)
-  return static_cast<int32_t>(reinterpret_cast<intptr_t>(handle));
-#elif defined(OS_POSIX)
-  return handle;
-#else
-  #error Not implemented.
-#endif
-}
-
-}  // namespace
-
 // PPB_Broker_Impl ------------------------------------------------------
 
 PPB_Broker_Impl::PPB_Broker_Impl(PP_Instance instance)