Make cc a component

cc/occlusion_tracker.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 CCOcclusionTracker_h
 #define CCOcclusionTracker_h
 
 #include "FloatQuad.h"
 #include "Region.h"
 #include "base/basictypes.h"
+#include "cc/cc_export.h"
 #include "cc/layer_iterator.h"
 #include "ui/gfx/rect.h"
 
 namespace cc {
 class OverdrawMetrics;
 class LayerImpl;
 class RenderSurfaceImpl;
 class Layer;
 class RenderSurface;
 
 // This class is used to track occlusion of layers while traversing them in a front-to-back order. As each layer is visited, one of the
 // methods in this class is called to notify it about the current target surface.
 // Then, occlusion in the content space of the current layer may be queried, via methods such as occluded() and unoccludedContentRect().
 // If the current layer owns a RenderSurfaceImpl, then occlusion on that RenderSurfaceImpl may also be queried via surfaceOccluded() and surfaceUnoccludedContentRect().
 // Finally, once finished with the layer, occlusion behind the layer should be marked by calling markOccludedBehindLayer().
 template<typename LayerType, typename RenderSurfaceType>
-class OcclusionTrackerBase {
+class CC_EXPORT OcclusionTrackerBase {
 public:
-  OcclusionTrackerBase(gfx::Rect rootTargetRect, bool recordMetricsForFrame);
+    OcclusionTrackerBase(gfx::Rect rootTargetRect, bool recordMetricsForFrame);
+    ~OcclusionTrackerBase();
 
     // Called at the beginning of each step in the LayerIterator's front-to-back traversal.
     void enterLayer(const LayerIteratorPosition<LayerType>&);
     // Called at the end of each step in the LayerIterator's front-to-back traversal.
     void leaveLayer(const LayerIteratorPosition<LayerType>&);
 
     // Returns true if the given rect in content space for a layer is fully occluded in either screen space or the layer's target surface.  |renderTarget| is the contributing layer's render target, and |drawTransform|, |transformsToTargetKnown| and |clippedRectInTarget| are relative to that.
     bool occluded(const LayerType* renderTarget, const gfx::Rect& contentRect, const WebKit::WebTransformationMatrix& drawTransform, bool implDrawTransformIsUnknown, const gfx::Rect& clippedRectInTarget, bool* hasOcclusionFromOutsideTargetSurface = 0) const;
     // Gives an unoccluded sub-rect of |contentRect| in the content space of a layer. Used when considering occlusion for a layer that paints/draws something. |renderTarget| is the contributing layer's render target, and |drawTransform|, |transformsToTargetKnown| and |clippedRectInTarget| are relative to that.
     gfx::Rect unoccludedContentRect(const LayerType* renderTarget, const gfx::Rect& contentRect, const WebKit::WebTransformationMatrix& drawTransform, bool implDrawTransformIsUnknown, const gfx::Rect& clippedRectInTarget, bool* hasOcclusionFromOutsideTargetSurface = 0) const;
@@ skipping 58 matching lines @@
 
     DISALLOW_COPY_AND_ASSIGN(OcclusionTrackerBase);
 };
 
 typedef OcclusionTrackerBase<Layer, RenderSurface> OcclusionTracker;
 typedef OcclusionTrackerBase<LayerImpl, RenderSurfaceImpl> OcclusionTrackerImpl;
 
 }  // namespace cc
 
 #endif // CCOcclusionTracker_h