Gets component build to work with aura. As part of this I needed to

ui/aura/layout_manager.h

Index: ui/aura/layout_manager.h
diff --git a/ui/aura/layout_manager.h b/ui/aura/layout_manager.h
index 0d41468d69b480ae80bbb05ab8e465cc5bd615b3..be4e856cf418adb8c745210417fb9b00c5904be2 100644
--- a/ui/aura/layout_manager.h
+++ b/ui/aura/layout_manager.h
@@ -6,12 +6,12 @@
 #define UI_AURA_LAYOUT_MANAGER_H_
 #pragma once
 
-#include "ui/aura_shell/aura_shell_export.h"
+#include "ui/aura/aura_export.h"
 
 namespace aura {
 
 // An interface implemented by an object that places child windows.
-class AURA_SHELL_EXPORT LayoutManager {
+class AURA_EXPORT LayoutManager {
  public:
   virtual ~LayoutManager() {}