Mark types used in template instantiatious explicitly as visible

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 CC_OCCLUSION_TRACKER_H_
 #define CC_OCCLUSION_TRACKER_H_
 
 #include "base/basictypes.h"
+#include "base/export_template_type.h"
 #include "cc/cc_export.h"
 #include "cc/layer_iterator.h"
 #include "cc/region.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 CC_EXPORT OcclusionTrackerBase {
 public:
     OcclusionTrackerBase(gfx::Rect screenSpaceClipRect, bool recordMetricsForFrame);
@@ skipping 65 matching lines @@
     scoped_ptr<OverdrawMetrics> m_overdrawMetrics;
     gfx::Size m_minimumTrackingSize;
 
     // This is used for visualizing the occlusion tracking process.
     std::vector<gfx::Rect>* m_occludingScreenSpaceRects;
     std::vector<gfx::Rect>* m_nonOccludingScreenSpaceRects;
 
     DISALLOW_COPY_AND_ASSIGN(OcclusionTrackerBase);
 };
 
+EXPORT_TEMPLATE_TYPE(class, CC_EXPORT, Layer);
+EXPORT_TEMPLATE_TYPE(class, CC_EXPORT, LayerImpl);
+EXPORT_TEMPLATE_TYPE(class, CC_EXPORT, RenderSurface);
+EXPORT_TEMPLATE_TYPE(class, CC_EXPORT, RenderSurfaceImpl);
+
 typedef OcclusionTrackerBase<Layer, RenderSurface> OcclusionTracker;
 typedef OcclusionTrackerBase<LayerImpl, RenderSurfaceImpl> OcclusionTrackerImpl;
 #if !defined(COMPILER_MSVC)
 extern template class OcclusionTrackerBase<Layer, RenderSurface>;
 extern template class OcclusionTrackerBase<LayerImpl, RenderSurfaceImpl>;
 #endif
 
 }  // namespace cc
 
 #endif  // CC_OCCLUSION_TRACKER_H_