GTK: Add download notifications to the unity dock.

chrome/browser/ui/gtk/unity_service.h

Index: chrome/browser/ui/gtk/unity_service.h
diff --git a/chrome/browser/ui/gtk/unity_service.h b/chrome/browser/ui/gtk/unity_service.h
new file mode 100644
index 0000000000000000000000000000000000000000..dca959519db6c559597200aa69e8dc94eb86c44d
--- /dev/null
+++ b/chrome/browser/ui/gtk/unity_service.h
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+// Copyright (c) 2011 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_GTK_UNITY_SERVICE_H_
+#define CHROME_BROWSER_UI_GTK_UNITY_SERVICE_H_
+
+#include <gtk/gtk.h>
+
+namespace unity {
+
+// Returns whether unity is currently running.
+bool IsRunning();
+
+// If unity is running, sets the download counter in the dock icon. Any value
+// other than 0 displays the badge.
+void SetDownloadCount(int count);
+
+// If unity is running, sets the download progress bar in the dock icon. Any
+// value between 0.0 and 1.0 (exclusive) shows the progress bar.
+void SetProgressFraction(float percentage);
+
+}  // namespace unity
+
+#endif  // CHROME_BROWSER_UI_GTK_UNITY_SERVICE_H_