Adding support for mount point different from removable devices to MountLibrary

chrome/browser/chromeos/cros/mount_library.h

Index: chrome/browser/chromeos/cros/mount_library.h
===================================================================
--- chrome/browser/chromeos/cros/mount_library.h	(revision 93731)
+++ chrome/browser/chromeos/cros/mount_library.h	(working copy)
@@ -6,8 +6,8 @@
 #define CHROME_BROWSER_CHROMEOS_CROS_MOUNT_LIBRARY_H_
 #pragma once
 
+#include <map>
 #include <string>
-#include <map>
 
 #include "base/memory/singleton.h"
 #include "base/observer_list.h"
@@ -32,6 +32,10 @@
 // library class like this: chromeos::CrosLibrary::Get()->GetMountLibrary()
 class MountLibrary {
  public:
+  enum MountEvent {
+    MOUNTING,
+    UNMOUNTING
+  };
   // Used to house an instance of each found mount device.
   class Disk {
    public:
@@ -97,6 +101,22 @@
   };
   typedef std::map<std::string, Disk*> DiskMap;
 
+  // MountPointInfo: {mount_path, mount_type}.
+  struct MountPointInfo {
+    std::string source_path;
+    std::string mount_path;
+    MountType mount_type;
+
+    MountPointInfo(const char* source, const char* mount, const MountType type)
+        : source_path(source ? source : ""),
+          mount_path(mount ? mount : ""),
+          mount_type(type) {
+    }
+  };
+
+  // MountPointMap key is source_path.
+  typedef std::map<std::string, MountPointInfo> MountPointMap;
+
   typedef void(*UnmountDeviceRecursiveCallbackType)(void*, bool);
 
   class Observer {
@@ -107,16 +127,26 @@
                              const Disk* disk) = 0;
     virtual void DeviceChanged(MountLibraryEventType event,
                                const std::string& device_path ) = 0;
+    virtual void MountCompleted(MountEvent event_type,
+        MountError error_code,
+        const MountPointInfo& mount_info) = 0;
   };
 
   virtual ~MountLibrary() {}
   virtual void AddObserver(Observer* observer) = 0;
   virtual void RemoveObserver(Observer* observer) = 0;
   virtual const DiskMap& disks() const = 0;
+  virtual const MountPointMap& mount_points() const = 0;
 
+  virtual std::string MountTypeToString(MountType type) const = 0;
+  virtual MountType MountTypeFromString(const std::string& type_str) const = 0;
+
   virtual void RequestMountInfoRefresh() = 0;
-  virtual void MountPath(const char* device_path) = 0;
-  virtual void UnmountPath(const char* device_path) = 0;
+  virtual void MountPath(const char* source_path,
+                         MountType type,
+                         const MountPathOptions& options) = 0;
+  // |path| may be source od mount path.
+  virtual void UnmountPath(const char* path) = 0;
 
   // Unmounts device_poath and all of its known children.
   virtual void UnmountDeviceRecursive(const char* device_path,