Revert 177182 - ViewTest.ChangeNativeViewHierarchyFindRoots failure

chrome/browser/ui/aura/chrome_browser_main_extra_parts_aura.h

Index: chrome/browser/ui/aura/chrome_browser_main_extra_parts_aura.h
===================================================================
--- chrome/browser/ui/aura/chrome_browser_main_extra_parts_aura.h	(revision 177189)
+++ chrome/browser/ui/aura/chrome_browser_main_extra_parts_aura.h	(working copy)
@@ -10,6 +10,12 @@
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/chrome_browser_main_extra_parts.h"
 
+namespace aura {
+namespace client {
+class StackingClient;
+}
+}
+
 class ActiveDesktopMonitor;
 
 class ChromeBrowserMainExtraPartsAura : public ChromeBrowserMainExtraParts {
@@ -22,6 +28,7 @@
   virtual void PostMainMessageLoopRun() OVERRIDE;
 
  private:
+  scoped_ptr<aura::client::StackingClient> stacking_client_;
   scoped_ptr<ActiveDesktopMonitor> active_desktop_monitor_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserMainExtraPartsAura);