[WIP] Provided file system from NACL.

chrome/browser/chromeos/file_manager/volume_manager.h

Index: chrome/browser/chromeos/file_manager/volume_manager.h
diff --git a/chrome/browser/chromeos/file_manager/volume_manager.h b/chrome/browser/chromeos/file_manager/volume_manager.h
index 81166f4f5def4c297f7c3cd2bf796e4daa2a6d5d..204db92c20b58b6e7f460f084303fc1d5742e3ff 100644
--- a/chrome/browser/chromeos/file_manager/volume_manager.h
+++ b/chrome/browser/chromeos/file_manager/volume_manager.h
@@ -19,6 +19,7 @@
 #include "base/observer_list.h"
 #include "base/prefs/pref_change_registrar.h"
 #include "chrome/browser/chromeos/drive/drive_integration_service.h"
+#include "chrome/browser/chromeos/file_system_provider/file_system_plugin/plugin_service.h"
 #include "chrome/browser/chromeos/file_system_provider/observer.h"
 #include "chrome/browser/chromeos/file_system_provider/service.h"
 #include "chromeos/dbus/cros_disks_client.h"
@@ -56,6 +57,7 @@ enum VolumeType {
   // tools/metrics/histograms/histograms.xml. Since enums for histograms are
   // append-only (for keeping the number consistent across versions), new values
   // for this enum also has to be always appended at the end (i.e., here).
+  VOLUME_TYPE_PLUGIN_PROVIDED,
   NUM_VOLUME_TYPE,
 };
 
@@ -209,6 +211,8 @@ class VolumeManager : public KeyedService,
       chromeos::PowerManagerClient* power_manager_client,
       chromeos::disks::DiskMountManager* disk_mount_manager,
       chromeos::file_system_provider::Service* file_system_provider_service,
+      chromeos::file_system_provider::PluginService*
+        file_system_plugin_provided_service,
       GetMtpStorageInfoCallback get_mtp_storage_info_callback);
   ~VolumeManager() override;
 
@@ -305,6 +309,8 @@ class VolumeManager : public KeyedService,
   base::ObserverList<VolumeManagerObserver> observers_;
   chromeos::file_system_provider::Service*
       file_system_provider_service_;  // Not owned by this class.
+  chromeos::file_system_provider::PluginService*
+      file_system_plugin_provided_service_;
   GetMtpStorageInfoCallback get_mtp_storage_info_callback_;
   std::map<std::string, linked_ptr<Volume>> mounted_volumes_;
   scoped_ptr<SnapshotManager> snapshot_manager_;