Rename wm_core_export.h to wm_export.h and the wm_core target to just wm

ui/wm/core/focus_rules.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_WM_CORE_FOCUS_RULES_H_
 #define UI_WM_CORE_FOCUS_RULES_H_
 
-#include "ui/wm/core/wm_core_export.h"
+#include "ui/wm/wm_export.h"
 
 namespace aura {
 class Window;
 }
 
 namespace wm {
 
 // Implemented by an object that establishes the rules about what can be
 // focused or activated.
-class WM_CORE_EXPORT FocusRules {
+class WM_EXPORT FocusRules {
  public:
   virtual ~FocusRules() {}
 
   // Returns true if |window| is a toplevel window. Whether or not a window
   // is considered toplevel is determined by a similar set of rules that
   // govern activation and focus. Not all toplevel windows are activatable,
   // call CanActivateWindow() to determine if a window can be activated.
   virtual bool IsToplevelWindow(aura::Window* window) const = 0;
   // Returns true if |window| can be activated or focused.
   virtual bool CanActivateWindow(aura::Window* window) const = 0;
@@ skipping 28 matching lines @@
   // - it is being destroyed.
   // - it is being explicitly deactivated.
   // |ignore| cannot be NULL.
   virtual aura::Window* GetNextActivatableWindow(
       aura::Window* ignore) const = 0;
 };
 
 }  // namespace wm
 
 #endif  // UI_WM_CORE_FOCUS_RULES_H_