GTK: Add download notifications to the unity dock.

chrome/browser/ui/gtk/dock_service.cc

Index: chrome/browser/ui/gtk/dock_service.cc
diff --git a/chrome/browser/ui/gtk/dock_service.cc b/chrome/browser/ui/gtk/dock_service.cc
new file mode 100644
index 0000000000000000000000000000000000000000..0ca2f4951858429ca66037e2fa34cd6d89d1d67c
--- /dev/null
+++ b/chrome/browser/ui/gtk/dock_service.cc
@@ -0,0 +1,28 @@
+// 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.
+
+#include "chrome/browser/ui/gtk/dock_service.h"
+
+#include "base/scoped_ptr.h"
+#include "chrome/browser/ui/gtk/unity_dock_service.h"
+
+namespace {
+
+bool tried_ = false;
+
+}  // namespace
+
+// static
+DockService* DockService::GetService() {
+  static scoped_ptr<DockService> dock;
+  if (!tried_) {
+    // For now, we only try to build the unity dock service.
+    dock.reset(UnityDockService::Build());

[Evan Martin, 2011/04/26 00:33:52]

Are there other dock services that you intend to support?

[Elliot Glaysher, 2011/04/26 01:02:39]

I would like (if I can figure out DBUS) to support Docky, but that's more a P3
and I just realized this architecture won't work.

I started reading the libunity source and it provides an UnityIsRunning()
method. If I remove the DockService interface, I can use it to detect unity for
the titlebar case. If we don't mind loading libunity at startup, that is...
WDYT?

+
+    tried_ = true;
+  }
+
+  return dock.get();
+}
+