Reorder browser list on workspace switch

chrome/browser/ui/browser_list.h

Index: chrome/browser/ui/browser_list.h
diff --git a/chrome/browser/ui/browser_list.h b/chrome/browser/ui/browser_list.h
index 19ffaba1b1a12823e86f80566639b3f59965c185..a8dd95c70636ccb03f7508fbde6728199fd7252c 100644
--- a/chrome/browser/ui/browser_list.h
+++ b/chrome/browser/ui/browser_list.h
@@ -12,6 +12,7 @@
 #include "base/lazy_instance.h"
 #include "base/macros.h"
 #include "base/observer_list.h"
+#include "ui/display/desktop_observer.h"
 
 class Browser;
 class Profile;
@@ -25,7 +26,7 @@ class BrowserListObserver;
 }
 
 // Maintains a list of Browser objects.
-class BrowserList {
+class BrowserList : public display::desktop::DesktopObserver {
  public:
   typedef std::vector<Browser*> BrowserVector;
   typedef BrowserVector::const_iterator const_iterator;
@@ -96,7 +97,10 @@ class BrowserList {
 
  private:
   BrowserList();
-  ~BrowserList();
+  ~BrowserList() override;
+
+  // display::DesktopObserver:
+  void OnWorkspaceChanged(const std::string& new_workspace) override;
 
   // Helper method to remove a browser instance from a list of browsers
   static void RemoveBrowserFrom(Browser* browser, BrowserVector* browser_list);