Reorder browser list on workspace switch

ui/display/desktop_observer.h

Index: ui/display/desktop_observer.h
diff --git a/ui/display/desktop_observer.h b/ui/display/desktop_observer.h
new file mode 100644
index 0000000000000000000000000000000000000000..7e605e71cca4f9aa6d02bf14d8b644974cf75d22
--- /dev/null
+++ b/ui/display/desktop_observer.h
@@ -0,0 +1,29 @@
+// Copyright (c) 2016 The Chromium Authors. All rights reserved.

[Lei Zhang, 2016/06/29 18:30:53]

no (c)

[Tom (Use chromium acct), 2016/06/29 20:16:05]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_DISPLAY_DESKTOP_OBSERVER_H_
+#define UI_DISPLAY_DESKTOP_OBSERVER_H_
+
+#include <string>
+
+#include "base/observer_list.h"
+#include "ui/display/display_export.h"
+
+namespace display {
+
+// Observers for desktop configuration changes.
+class DISPLAY_EXPORT DesktopObserver {
+ public:
+  virtual void OnWorkspaceChanged(const std::string& new_workspace) = 0;
+
+ protected:
+  virtual ~DesktopObserver();
+};
+
+DISPLAY_EXPORT extern base::ObserverList<display::DesktopObserver>
+    g_desktop_observer_list;

[Elliot Glaysher, 2016/06/29 18:21:09]

I'm pretty sure you don't want to have a raw ObserverList like this; I can only
find one other instance in the chrome code base of doing this
(ui/accessibility/platform/ax_platform_node_win.h).

[Tom (Use chromium acct), 2016/06/29 20:16:05]

Done.

+
+}  // namespace display
+
+#endif  // UI_DISPLAY_DESKTOP_OBSERVER_H_