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 93425)
+++ chrome/browser/chromeos/cros/mount_library.h	(working copy)
@@ -6,8 +6,9 @@
 #define CHROME_BROWSER_CHROMEOS_CROS_MOUNT_LIBRARY_H_
 #pragma once
 
+#include <map>
+#include <set>
 #include <string>
-#include <map>
 
 #include "base/memory/singleton.h"
 #include "base/observer_list.h"
@@ -97,6 +98,8 @@
   };
   typedef std::map<std::string, Disk*> DiskMap;
 
+  typedef std::set<std::string> MountPointSet;
+
   typedef void(*UnmountDeviceRecursiveCallbackType)(void*, bool);
 
   class Observer {
@@ -107,6 +110,10 @@
                              const Disk* disk) = 0;
     virtual void DeviceChanged(MountLibraryEventType event,
                                const std::string& device_path ) = 0;
+    virtual void MountCompleted(MountError error_code,
+                                const std::string& source,
+                                MountType mount_type,
+                                const std::string& mount_path) = 0;
   };
 
   virtual ~MountLibrary() {}
@@ -115,8 +122,11 @@
   virtual const DiskMap& disks() 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,