[fsp] Add support for reading directories.

chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc

Index: chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc
diff --git a/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc b/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc
index 8e378db97f95733671b9818194b3262df62e8774..13c434c1cf6344ea78b43375bbd241752a5a211a 100644
--- a/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc
+++ b/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc
@@ -7,6 +7,7 @@
 #include <string>
 
 #include "base/values.h"
+#include "base/memory/scoped_ptr.h"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h"
 #include "chrome/browser/chromeos/file_system_provider/request_manager.h"
 #include "chrome/browser/chromeos/file_system_provider/request_value.h"
@@ -123,4 +124,26 @@ bool FileSystemProviderInternalGetMetadataRequestedErrorFunction::RunSync() {
   return true;
 }
 
+bool
+FileSystemProviderInternalReadDirectoryRequestedSuccessFunction::RunSync() {
+  using api::file_system_provider_internal::ReadDirectoryRequestedSuccess::
+      Params;
+  scoped_ptr<Params> params(Params::Create(*args_));
+  EXTENSION_FUNCTION_VALIDATE(params);
+
+  const bool has_next = params->has_next;
+  FulfillRequest(RequestValue::CreateForReadDirectorySuccess(params.Pass()),
+                 has_next);
+  return true;
+}
+
+bool FileSystemProviderInternalReadDirectoryRequestedErrorFunction::RunSync() {
+  using api::file_system_provider_internal::ReadDirectoryRequestedError::Params;
+  const scoped_ptr<Params> params(Params::Create(*args_));
+  EXTENSION_FUNCTION_VALIDATE(params);
+
+  RejectRequest(ProviderErrorToFileError(params->error));
+  return true;
+}
+
 }  // namespace extensions