[StorageMonitor] Handle EjectDevice call for MTP devices

chrome/browser/storage_monitor/storage_monitor_linux.cc

Index: chrome/browser/storage_monitor/storage_monitor_linux.cc
diff --git a/chrome/browser/storage_monitor/storage_monitor_linux.cc b/chrome/browser/storage_monitor/storage_monitor_linux.cc
index 3be93b981eb174dc6f3eeb7b65c87627d72ed416..a8096f6c747f15c2a4ec58a1d1a535062a59a5d7 100644
--- a/chrome/browser/storage_monitor/storage_monitor_linux.cc
+++ b/chrome/browser/storage_monitor/storage_monitor_linux.cc
@@ -334,6 +334,17 @@ void StorageMonitorLinux::SetMediaTransferProtocolManagerForTest(
 void StorageMonitorLinux::EjectDevice(
     const std::string& device_id,
     base::Callback<void(EjectStatus)> callback) {
+  StorageInfo::Type type;
+  if (!StorageInfo::CrackDeviceId(device_id, &type, NULL)) {
+    callback.Run(EJECT_FAILURE);
+    return;
+  }
+
+  if (type == StorageInfo::MTP_OR_PTP) {
+    media_transfer_protocol_device_observer_->EjectDevice(device_id, callback);
+    return;
+  }
+
   // Find the mount point for the given device ID.
   base::FilePath path;
   base::FilePath device;