Explicitly hardcode tab_drag_controller_interactive_uitest.cc to use the native desktop list.

chrome/browser/ui/views/tabs/tab_drag_controller_interactive_uitest.h

Index: chrome/browser/ui/views/tabs/tab_drag_controller_interactive_uitest.h
diff --git a/chrome/browser/ui/views/tabs/tab_drag_controller_interactive_uitest.h b/chrome/browser/ui/views/tabs/tab_drag_controller_interactive_uitest.h
index 7ce86652142b447ae8a7f5fda9d22887d4ee8085..3515be158fb51709fa454d167f412f24badc33c0 100644
--- a/chrome/browser/ui/views/tabs/tab_drag_controller_interactive_uitest.h
+++ b/chrome/browser/ui/views/tabs/tab_drag_controller_interactive_uitest.h
@@ -13,6 +13,10 @@ class Browser;
 class TabStrip;
 class TabStripModel;
 
+namespace chrome {
+class BrowserListImpl;
+}
+
 namespace content {
 class WebContents;
 }
@@ -43,6 +47,10 @@ class TabDragControllerTest : public InProcessBrowserTest {
   // side by side.
   Browser* CreateAnotherWindowBrowserAndRelayout();
 
+  // The tab drag controller interactive ui tests only use the native desktop
+  // for now.
+  const chrome::BrowserListImpl* native_browser_list;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(TabDragControllerTest);
 };