Implement the file chooser as a new resource "host"

ppapi/proxy/resource_creation_proxy.cc

Index: ppapi/proxy/resource_creation_proxy.cc
diff --git a/ppapi/proxy/resource_creation_proxy.cc b/ppapi/proxy/resource_creation_proxy.cc
index 7cbab75f0999dfb06dcef0c50223e67be3da0565..51dd334d2a07875773b5e08caf594cc1fc7ae49a 100644
--- a/ppapi/proxy/resource_creation_proxy.cc
+++ b/ppapi/proxy/resource_creation_proxy.cc
@@ -7,6 +7,7 @@
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/pp_size.h"
 #include "ppapi/c/trusted/ppb_image_data_trusted.h"
+#include "ppapi/proxy/file_chooser_resource.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/plugin_resource_tracker.h"
 #include "ppapi/proxy/ppapi_messages.h"
@@ -14,7 +15,6 @@
 #include "ppapi/proxy/ppb_audio_proxy.h"
 #include "ppapi/proxy/ppb_buffer_proxy.h"
 #include "ppapi/proxy/ppb_broker_proxy.h"
-#include "ppapi/proxy/ppb_file_chooser_proxy.h"
 #include "ppapi/proxy/ppb_file_io_proxy.h"
 #include "ppapi/proxy/ppb_file_ref_proxy.h"
 #include "ppapi/proxy/ppb_file_system_proxy.h"
@@ -241,8 +241,8 @@ PP_Resource ResourceCreationProxy::CreateFileChooser(
     PP_Instance instance,
     PP_FileChooserMode_Dev mode,
     const char* accept_types) {
-  return PPB_FileChooser_Proxy::CreateProxyResource(instance, mode,
-                                                    accept_types);
+  return (new FileChooserResource(dispatcher(), instance, mode,
+                                  accept_types))->GetReference();
 }
 
 PP_Resource ResourceCreationProxy::CreateFlashDeviceID(PP_Instance instance) {