[CrosDisksClient] Determine device type from DeviceMediaType property sent by cros-disks.

chrome/browser/chromeos/dbus/cros_disks_client.h

Index: chrome/browser/chromeos/dbus/cros_disks_client.h
diff --git a/chrome/browser/chromeos/dbus/cros_disks_client.h b/chrome/browser/chromeos/dbus/cros_disks_client.h
index 75ea9982a0cfcee42038946107515b9082d33a75..8cc529161606cdc2dfa80fdda4198cb0d0b84c06 100644
--- a/chrome/browser/chromeos/dbus/cros_disks_client.h
+++ b/chrome/browser/chromeos/dbus/cros_disks_client.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -29,10 +29,11 @@ enum MountType {
 
 // Type of device.
 enum DeviceType {
-  FLASH,
-  HDD,
-  OPTICAL,
-  UNDEFINED,
+  DEVICE_TYPE_UNKNOWN,
+  DEVICE_TYPE_USB,  // USB stick.
+  DEVICE_TYPE_SD,  // SD card.
+  DEVICE_TYPE_OPTICAL_DISC,  // e.g. DVD.
+  DEVICE_TYPE_MOBILE  // Storage on a mobile device (e.g. Android).
 };
 
 // Mount error code used by cros-disks.