Componentization: make core classes visible for blink_tests and blink_web.

Source/core/paint/ScopeRecorder.h

Index: Source/core/paint/ScopeRecorder.h
diff --git a/Source/core/paint/ScopeRecorder.h b/Source/core/paint/ScopeRecorder.h
index 77e8c389e91af0128bef328ce38834960d845be8..145b02f3b8f6af03f8347235379fe7323a91d492 100644
--- a/Source/core/paint/ScopeRecorder.h
+++ b/Source/core/paint/ScopeRecorder.h
@@ -5,6 +5,7 @@
 #ifndef ScopeRecorder_h
 #define ScopeRecorder_h
 
+#include "core/CoreExport.h"
 #include "platform/graphics/paint/DisplayItem.h"
 
 namespace blink {
@@ -13,7 +14,7 @@ class DisplayItemList;
 class GraphicsContext;
 class LayoutObject;
 
-class ScopeRecorder {
+class CORE_EXPORT ScopeRecorder {
 public:
     ScopeRecorder(GraphicsContext&, const DisplayItemClientWrapper&);