chromeos: Converts WorkspaceLayoutManager to aura::LayoutManager

ash/wm/switchable_windows.h

Index: ash/wm/switchable_windows.h
diff --git a/ash/wm/switchable_windows.h b/ash/wm/switchable_windows.h
index 4fc868a24ef3b8b17ca547b4b78fd40b187d9c96..0b87af724487fb9f9b443367da7fa0d7bf4aaae6 100644
--- a/ash/wm/switchable_windows.h
+++ b/ash/wm/switchable_windows.h
@@ -10,10 +10,11 @@
 #include "ash/ash_export.h"
 #include "base/macros.h"
 
-namespace ash {
-
-class WmWindow;
+namespace aura {
+class Window;
+}
 
+namespace ash {
 namespace wm {
 
 // List of containers which contain windows that can be switched via Alt+Tab to.
@@ -23,7 +24,7 @@ ASH_EXPORT extern const int kSwitchableWindowContainerIds[];
 ASH_EXPORT extern const size_t kSwitchableWindowContainerIdsLength;
 
 // Returns true if |window| is a container for windows which can be switched to.
-ASH_EXPORT bool IsSwitchableContainer(const WmWindow* window);
+ASH_EXPORT bool IsSwitchableContainer(const aura::Window* window);
 
 }  // namespace wm
 }  // namespace ash