Implement the file chooser as a new resource "host"

content/renderer/pepper/pepper_in_process_resource_creation.cc

Index: content/renderer/pepper/pepper_in_process_resource_creation.cc
diff --git a/content/renderer/pepper/pepper_in_process_resource_creation.cc b/content/renderer/pepper/pepper_in_process_resource_creation.cc
index 0f41ebed4755e892389e2a57e115cd014cceffe3..5bb7a22a3a93318f7043453ed844368c3a14e0b8 100644
--- a/content/renderer/pepper/pepper_in_process_resource_creation.cc
+++ b/content/renderer/pepper/pepper_in_process_resource_creation.cc
@@ -8,6 +8,7 @@
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_message_macros.h"
 #include "ppapi/host/ppapi_host.h"
+#include "ppapi/proxy/file_chooser_resource.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/shared_impl/ppapi_globals.h"
 #include "ppapi/shared_impl/resource_tracker.h"
@@ -101,4 +102,13 @@ PepperInProcessResourceCreation::PepperInProcessResourceCreation(
 PepperInProcessResourceCreation::~PepperInProcessResourceCreation() {
 }
 
+PP_Resource PepperInProcessResourceCreation::CreateFileChooser(
+    PP_Instance instance,
+    PP_FileChooserMode_Dev mode,
+    const char* accept_types) {
+  return (new ppapi::proxy::FileChooserResource(
+      plugin_to_host_router_.get(),
+      instance, mode, accept_types))->GetReference();
+}
+
 }  // namespace content