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

ui/wm/core/image_grid.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_IMAGE_GRID_H_
 #define UI_WM_CORE_IMAGE_GRID_H_
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/layer_delegate.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
-#include "ui/wm/wm_export.h"
+#include "ui/wm/core/wm_core_export.h"
 
 namespace gfx {
 class Image;
 }  // namespace gfx
 
 namespace wm {
 
 // An ImageGrid is a 3x3 array of ui::Layers, each containing an image.
 //
 // As the grid is resized, its images fill the requested space:
@@ skipping 23 matching lines @@
 //   |    ..xxx|XXXXXXXXXXXXXXXXXX
 //   |  .xXXXXX|XXXXXXXXXXXXXXXXXX_____
 //   | .xXX    |                    ^ window's top edge
 //   | .xXX    |
 //   +---------+
 //   | xXX|
 //   | xXX|< window's left edge
 //   | xXX|
 //   ...
 //
-class WM_EXPORT ImageGrid {
+class WM_CORE_EXPORT ImageGrid {
  public:
   // Helper class for use by tests.
-  class WM_EXPORT TestAPI {
+  class WM_CORE_EXPORT TestAPI {
    public:
     TestAPI(ImageGrid* grid) : grid_(grid) {}
 
     gfx::Rect top_left_clip_rect() const {
       return grid_->top_left_painter_->clip_rect_;
     }
     gfx::Rect top_right_clip_rect() const {
       return grid_->top_right_painter_->clip_rect_;
     }
     gfx::Rect bottom_left_clip_rect() const {
@@ skipping 144 matching lines @@
   scoped_ptr<ImagePainter> bottom_left_painter_;
   scoped_ptr<ImagePainter> bottom_painter_;
   scoped_ptr<ImagePainter> bottom_right_painter_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageGrid);
 };
 
 }  // namespace wm
 
 #endif  // UI_WM_CORE_IMAGE_GRID_H_