Move chromeos_mount.cc from libcros to Chrome tree

chrome/browser/chromeos/dbus/dbus_thread_manager.h

Index: chrome/browser/chromeos/dbus/dbus_thread_manager.h
diff --git a/chrome/browser/chromeos/dbus/dbus_thread_manager.h b/chrome/browser/chromeos/dbus/dbus_thread_manager.h
index df9c35f0b6f7bd82e3bdb08aba33b50d7131901e..91d56c342ae8d5f876f5ead6179a4702731b715e 100644
--- a/chrome/browser/chromeos/dbus/dbus_thread_manager.h
+++ b/chrome/browser/chromeos/dbus/dbus_thread_manager.h
@@ -21,6 +21,7 @@ namespace chromeos {
 
 class BluetoothAdapterClient;
 class BluetoothManagerClient;
+class CrosDisksClient;
 class CrosDBusService;
 class PowerManagerClient;
 class SessionManagerClient;
@@ -96,6 +97,11 @@ class DBusThreadManager {
   // down.
   virtual SpeechSynthesizerClient* GetSpeechSynthesizerClient() = 0;
 
+  // Returns the cros-disks client, owned by DBusThreadManager.
+  // Do not cache this pointer and use it after DBusThreadManager is shut
+  // down.
+  virtual CrosDisksClient* GetCrosDisksClient() = 0;
+
   virtual ~DBusThreadManager();
 
  protected: