Make cc a component

cc/layer_iterator.h

 // Copyright 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 CCLayerIterator_h
 #define CCLayerIterator_h
 
+#include "base/memory/ref_counted.h"
+#include "cc/cc_export.h"
 #include "cc/layer_tree_host_common.h"
 
-#include "base/memory/ref_counted.h"
-
 namespace cc {
 
 // These classes provide means to iterate over the RenderSurfaceImpl-Layer tree.
 
 // Example code follows, for a tree of Layer/RenderSurface objects. See below for details.
 //
 // void doStuffOnLayers(const std::vector<scoped_refptr<Layer> >& renderSurfaceLayerList)
 // {
 //     typedef LayerIterator<Layer, RenderSurface, LayerIteratorActions::FrontToBack> LayerIteratorType;
 //
@@ skipping 139 matching lines @@
     // A position in the list of layers that are children of the current target surface. When pointing to one of
     // these layers, this is a value from 0 to n-1 (n = number of children). Since the iterator must also stop at
     // the layers representing the target surface, this is done by setting the currentLayerIndex to a value of
     // LayerIteratorValue::LayerRepresentingTargetRenderSurface.
     int m_currentLayerIndex;
 
     friend struct LayerIteratorActions;
 };
 
 // Orderings for iterating over the RenderSurfaceImpl-Layer tree.
-struct LayerIteratorActions {
+struct CC_EXPORT LayerIteratorActions {
     // Walks layers sorted by z-order from back to front.
-    class BackToFront {
+    class CC_EXPORT BackToFront {
     public:
         template <typename LayerType, typename LayerList, typename RenderSurfaceType, typename ActionType>
         void begin(LayerIterator<LayerType, LayerList, RenderSurfaceType, ActionType>&);
 
         template <typename LayerType, typename LayerList, typename RenderSurfaceType, typename ActionType>
         void end(LayerIterator<LayerType, LayerList, RenderSurfaceType, ActionType>&);
 
         template <typename LayerType, typename LayerList, typename RenderSurfaceType, typename ActionType>
         void next(LayerIterator<LayerType, LayerList, RenderSurfaceType, ActionType>&);
 
     private:
         int m_highestTargetRenderSurfaceLayer;
     };
 
     // Walks layers sorted by z-order from front to back
-    class FrontToBack {
+    class CC_EXPORT FrontToBack {
     public:
         template <typename LayerType, typename LayerList, typename RenderSurfaceType, typename ActionType>
         void begin(LayerIterator<LayerType, LayerList, RenderSurfaceType, ActionType>&);
 
         template <typename LayerType, typename LayerList, typename RenderSurfaceType, typename ActionType>
         void end(LayerIterator<LayerType, LayerList, RenderSurfaceType, ActionType>&);
 
         template <typename LayerType, typename LayerList, typename RenderSurfaceType, typename ActionType>
         void next(LayerIterator<LayerType, LayerList, RenderSurfaceType, ActionType>&);
 
     private:
         template <typename LayerType, typename LayerList, typename RenderSurfaceType, typename ActionType>
         void goToHighestInSubtree(LayerIterator<LayerType, LayerList, RenderSurfaceType, ActionType>&);
     };
 };
 
 } // namespace cc
 
 #endif