Add the Windows.IsPinnedToTaskbar metric.

chrome/utility/shell_handler_impl_win.h

Index: chrome/utility/shell_handler_impl_win.h
diff --git a/chrome/utility/shell_handler_impl_win.h b/chrome/utility/shell_handler_impl_win.h
new file mode 100644
index 0000000000000000000000000000000000000000..224812e5dbddeaecf7cb32c8d021797761313477
--- /dev/null
+++ b/chrome/utility/shell_handler_impl_win.h
@@ -0,0 +1,29 @@
+// Copyright 2016 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_UTILITY_SHELL_HANDLER_IMPL_WIN_H_
+#define CHROME_UTILITY_SHELL_HANDLER_IMPL_WIN_H_
+
+#include "base/macros.h"
+#include "chrome/common/shell_handler_win.mojom.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+
+// Implements the ShellHandler mojo interface.
+class ShellHandlerImpl : public mojom::ShellHandler {
+ public:
+  static void Create(mojom::ShellHandlerRequest request);
+
+ private:
+  explicit ShellHandlerImpl(mojom::ShellHandlerRequest request);
+  ~ShellHandlerImpl() override;
+
+  // mojom::ShellHandler:
+  void IsPinnedToTaskbar(const IsPinnedToTaskbarCallback& callback) override;
+
+  mojo::StrongBinding<ShellHandler> binding_;
+
+  DISALLOW_COPY_AND_ASSIGN(ShellHandlerImpl);
+};
+
+#endif  // CHROME_UTILITY_SHELL_HANDLER_IMPL_WIN_H_