UMA for Windows 8 Secondary Tile pinning/unpinning user actions

win8/metro_driver/secondary_tile.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 #ifndef CHROME_BROWSER_UI_METRO_DRIVER_SECONDARY_TILE_H_
 #define CHROME_BROWSER_UI_METRO_DRIVER_SECONDARY_TILE_H_
 
 #include "base/file_path.h"
 #include "base/string16.h"
+#include "base/win/metro.h"
 
 extern "C" __declspec(dllexport)
 BOOL MetroIsPinnedToStartScreen(const string16& tile_id);
 
 extern "C" __declspec(dllexport)
-void MetroUnPinFromStartScreen(const string16& tile_id);
+void MetroUnPinFromStartScreen(
+    const string16& tile_id,
+    const base::win::MetroPinUmaResultCallback& callback);
 
 extern "C" __declspec(dllexport)
-void MetroPinToStartScreen(const string16& tile_id,
-                           const string16& title,
-                           const string16& url,
-                           const FilePath& logo_path);
+void MetroPinToStartScreen(
+    const string16& tile_id,
+    const string16& title,
+    const string16& url,
+    const FilePath& logo_path,
+    const base::win::MetroPinUmaResultCallback& callback);
 
 #endif  // CHROME_BROWSER_UI_METRO_DRIVER_SECONDARY_TILE_H_
-