Add a data source field for volumes.

chrome/browser/chromeos/file_manager/volume_manager.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_FILE_MANAGER_VOLUME_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_FILE_MANAGER_VOLUME_MANAGER_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 40 matching lines @@
   VOLUME_TYPE_CLOUD_DEVICE,
   VOLUME_TYPE_PROVIDED,  // File system provided by the FileSystemProvider API.
   VOLUME_TYPE_MTP,
   // The enum values must be kept in sync with FileManagerVolumeType in
   // 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).
   NUM_VOLUME_TYPE,
 };
 
+// Source of a volume's data.
+enum VolumeSource {
+  VOLUME_SOURCE_UNKNOWN,
+  VOLUME_SOURCE_FILE,
+  VOLUME_SOURCE_DEVICE,
+  VOLUME_SOURCE_NETWORK
+};
+
 // Says how was the mount performed, whether due to user interaction, or
 // automatic. User interaction includes both hardware (pluggins a USB stick)
 // or software (mounting a ZIP archive) interaction.
 enum MountContext {
   MOUNT_CONTEXT_USER,
   MOUNT_CONTEXT_AUTO,
   MOUNT_CONTEXT_UNKNOWN
 };
 
 // Represents a volume (mount point) in the volume manager. Validity of the data
@@ skipping 20 matching lines @@
                                   VolumeType volume_type,
                                   chromeos::DeviceType device_type,
                                   bool read_only);
   static Volume* CreateForTesting(const base::FilePath& device_path,
                                   const base::FilePath& mount_path);
 
   // Getters for all members. See below for details.
   const std::string& volume_id() const { return volume_id_; }
   const std::string& file_system_id() const { return file_system_id_; }
   const std::string& extension_id() const { return extension_id_; }
+  const VolumeSource volume_source() const { return volume_source_; }
   VolumeType type() const { return type_; }
   chromeos::DeviceType device_type() const { return device_type_; }
   const base::FilePath& source_path() const { return source_path_; }
   const base::FilePath& mount_path() const { return mount_path_; }
   chromeos::disks::MountCondition mount_condition() const {
     return mount_condition_;
   }
   MountContext mount_context() const { return mount_context_; }
   const base::FilePath& system_path_prefix() const {
     return system_path_prefix_;
@@ skipping 10 matching lines @@
   std::string volume_id_;
 
   // The ID for provided file systems. If other type, then empty string. Unique
   // per providing extension.
   std::string file_system_id_;
 
   // The ID of an extension providing the file system. If other type, then equal
   // to an empty string.
   std::string extension_id_;
 
+  // The source of the file system's data.
+  VolumeSource volume_source_;
+
   // The type of mounted volume.
   VolumeType type_;
 
   // The type of device. (e.g. USB, SD card, DVD etc.)
   chromeos::DeviceType device_type_;
 
   // The source path of the volume.
   // E.g.:
   // - /home/chronos/user/Downloads/zipfile_path.zip
   base::FilePath source_path_;
@@ skipping 147 matching lines @@
 
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.
   base::WeakPtrFactory<VolumeManager> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(VolumeManager);
 };
 
 }  // namespace file_manager
 
 #endif  // CHROME_BROWSER_CHROMEOS_FILE_MANAGER_VOLUME_MANAGER_H_