[Linux, Media Gallery] Fix MTPRecursiveDeviceObjectEnumerator to recursively enumerate all the medi…

chrome/browser/media_gallery/linux/mtp_device_object_enumerator.cc

Index: chrome/browser/media_gallery/linux/mtp_device_object_enumerator.cc
diff --git a/chrome/browser/media_gallery/linux/mtp_device_object_enumerator.cc b/chrome/browser/media_gallery/linux/mtp_device_object_enumerator.cc
index dfbc4078cfcb461bbcaed5480c3b756efecb67d6..faf0d5bf4cbd67bffd61439bc46f59a6d316d910 100644
--- a/chrome/browser/media_gallery/linux/mtp_device_object_enumerator.cc
+++ b/chrome/browser/media_gallery/linux/mtp_device_object_enumerator.cc
@@ -4,6 +4,8 @@
 
 #include "chrome/browser/media_gallery/linux/mtp_device_object_enumerator.h"
 
+#include "base/logging.h"
+
 namespace chrome {
 
 MTPDeviceObjectEnumerator::MTPDeviceObjectEnumerator(
@@ -36,4 +38,17 @@ base::Time MTPDeviceObjectEnumerator::LastModifiedTime() {
   return base::Time::FromTimeT(current_file_info_.modification_time());
 }
 
+bool MTPDeviceObjectEnumerator::GetEntryId(uint32_t* entry_id) const {
+  DCHECK(entry_id);
+  if (file_entry_iter_ == file_entries_.end())
+    return false;
+
+  *entry_id = file_entry_iter_->item_id();
+  return true;
+}
+
+bool MTPDeviceObjectEnumerator::HasMoreEntries() const {
+  return file_entry_iter_ != file_entries_.end();
+}
+
 }  // namespace chrome