Don't show hidden devices in UI (exept from imageburner).

chrome/browser/chromeos/cros/mount_library.h

Index: chrome/browser/chromeos/cros/mount_library.h
diff --git a/chrome/browser/chromeos/cros/mount_library.h b/chrome/browser/chromeos/cros/mount_library.h
index 3f5129c216295da0015902fc4877140851df6ded..3eb7b4777e912d81741008dd64732a50b4d0dd21 100644
--- a/chrome/browser/chromeos/cros/mount_library.h
+++ b/chrome/browser/chromeos/cros/mount_library.h
@@ -87,7 +87,8 @@ class MountLibrary {
          bool is_parent,
          bool is_read_only,
          bool has_media,
-         bool on_boot_device);
+         bool on_boot_device,
+         bool is_hidden);
     ~Disk();
 
     // The path of the device, used by devicekit-disks.
@@ -120,6 +121,8 @@ class MountLibrary {
     bool has_media() const { return has_media_; }
     // Is the device on the boot device.
     bool on_boot_device() const { return on_boot_device_; }
+    // Shoud the device be shown in the UI, or automounted.
+    bool is_hidden() const { return is_hidden_; }
 
     void set_mount_path(const char* mount_path) { mount_path_ = mount_path; }
     void clear_mount_path() { mount_path_.clear(); }
@@ -139,6 +142,7 @@ class MountLibrary {
     bool is_read_only_;
     bool has_media_;
     bool on_boot_device_;
+    bool is_hidden_;
   };
   typedef std::map<std::string, Disk*> DiskMap;
   typedef std::map<std::string, std::string> PathMap;