Reorder browser list on workspace switch

chrome/browser/chrome_browser_main_extra_parts_x11.h

 // 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.
 
 // Contains functions used by BrowserMain() that are gtk-specific.
 
 #ifndef CHROME_BROWSER_CHROME_BROWSER_MAIN_EXTRA_PARTS_X11_H_
 #define CHROME_BROWSER_CHROME_BROWSER_MAIN_EXTRA_PARTS_X11_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "chrome/browser/chrome_browser_main_extra_parts.h"
+#include "ui/display/desktop_observer.h"
 
-class ChromeBrowserMainExtraPartsX11 : public ChromeBrowserMainExtraParts {
+class ChromeBrowserMainExtraPartsX11 : public ChromeBrowserMainExtraParts,

[sky, 2016/07/06 20:33:05]

Sorry, I should have dug a bit more. We try to avoid chrome/browser depending
upon specific ui implementations. Can you move this to
ChromeBrowserMainExtraPartsViewsLinux?

[Tom (Use chromium acct), 2016/07/06 22:29:16]

Done.

+                                       public display::DesktopObserver {
  public:
   ChromeBrowserMainExtraPartsX11();
   ~ChromeBrowserMainExtraPartsX11() override;
 
  private:
   // ChromeBrowserMainExtraParts overrides.
   void PreEarlyInitialization() override;
   void PostMainMessageLoopStart() override;
   void PostMainMessageLoopRun() override;
 
+  // display::DesktopObserver overrides.
+  void OnWorkspaceChanged(const std::string& new_workspace) override;
+
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserMainExtraPartsX11);
 };
 
 #endif  // CHROME_BROWSER_CHROME_BROWSER_MAIN_EXTRA_PARTS_X11_H_