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

ui/wm/core/window_modality_controller.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_WINDOW_MODALITY_CONTROLLER_H_
 #define UI_WM_CORE_WINDOW_MODALITY_CONTROLLER_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "ui/aura/env_observer.h"
 #include "ui/aura/window_observer.h"
 #include "ui/events/event_handler.h"
-#include "ui/wm/wm_export.h"
+#include "ui/wm/core/wm_core_export.h"
 
 namespace ui {
 class EventTarget;
 class LocatedEvent;
 }
 
 namespace wm {
 
 // Sets the modal parent for the child.
-WM_EXPORT void SetModalParent(aura::Window* child, aura::Window* parent);
+WM_CORE_EXPORT void SetModalParent(aura::Window* child, aura::Window* parent);
 
 // Returns the modal transient child of |window|, or NULL if |window| does not
 // have any modal transient children.
-WM_EXPORT aura::Window* GetModalTransient(aura::Window* window);
+WM_CORE_EXPORT aura::Window* GetModalTransient(aura::Window* window);
 
 // WindowModalityController is an event filter that consumes events sent to
 // windows that are the transient parents of window-modal windows. This filter
 // must be added to the CompoundEventFilter so that activation works properly.
-class WM_EXPORT WindowModalityController : public ui::EventHandler,
-                                           public aura::EnvObserver,
-                                           public aura::WindowObserver {
+class WM_CORE_EXPORT WindowModalityController : public ui::EventHandler,
+                                                public aura::EnvObserver,
+                                                public aura::WindowObserver {
  public:
   explicit WindowModalityController(ui::EventTarget* event_target);
   virtual ~WindowModalityController();
 
   // Overridden from ui::EventHandler:
   virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE;
   virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE;
   virtual void OnTouchEvent(ui::TouchEvent* event) OVERRIDE;
 
   // Overridden from aura::EnvObserver:
@@ skipping 16 matching lines @@
   std::vector<aura::Window*> windows_;
 
   ui::EventTarget* event_target_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowModalityController);
 };
 
 }  // namespace wm
 
 #endif  // UI_WM_CORE_WINDOW_MODALITY_CONTROLLER_H_