Remove the drive status from the ash try.

chrome/browser/ui/ash/system_tray_delegate_win.cc

Index: chrome/browser/ui/ash/system_tray_delegate_win.cc
diff --git a/chrome/browser/ui/ash/system_tray_delegate_win.cc b/chrome/browser/ui/ash/system_tray_delegate_win.cc
index 0dbaa63fb8022abbda81fa5ebfc80b3d9f187e33..eef9cbe68e6107486a3b5f4034c1cf5423754298 100644
--- a/chrome/browser/ui/ash/system_tray_delegate_win.cc
+++ b/chrome/browser/ui/ash/system_tray_delegate_win.cc
@@ -121,9 +121,6 @@ class SystemTrayDelegateWin : public ash::SystemTrayDelegate,
     return false;
   }
 
-  virtual void ShowDriveSettings() OVERRIDE {
-  }
-
   virtual void ShowIMESettings() OVERRIDE {
   }
 
@@ -210,13 +207,6 @@ class SystemTrayDelegateWin : public ash::SystemTrayDelegate,
   virtual void ActivateIMEProperty(const std::string& key) OVERRIDE {
   }
 
-  virtual void CancelDriveOperation(int32 operation_id) OVERRIDE {
-  }
-
-  virtual void GetDriveOperationStatusList(
-      ash::DriveOperationStatusList* list) OVERRIDE {
-  }
-
   virtual void ShowNetworkConfigure(const std::string& network_id,
                                     gfx::NativeWindow parent_window) OVERRIDE {
   }