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..1c6858e5bc30124f418d37db3d5b1090fc5d6245 100644
--- a/chrome/browser/ui/browser_list.h
+++ b/chrome/browser/ui/browser_list.h
@@ -69,6 +69,10 @@ class BrowserList {
   static void AddObserver(chrome::BrowserListObserver* observer);
   static void RemoveObserver(chrome::BrowserListObserver* observer);
 
+  // Moves all the browsers that show on workspace |new_workspace| to the end of
+  // the browser list (i.e. the browsers that were "activated" most recently).
+  static void PartitionByWorkspace(const std::string& new_workspace);

[sky, 2016/07/07 21:31:11]

nit: IMO partition is obscure and while it matches the function you're using it
doesn't really indicate what this does. How about
MoveBrowsersInWorkspaceToFront? I realize front is a bit confusing here, but it
matches begin_last_active(), which returns the end.

+
   // Called by Browser objects when their window is activated (focused).  This
   // allows us to determine what the last active Browser was on each desktop.
   static void SetLastActive(Browser* browser);