Move all filters-related files from core/platform to platform.

Source/platform/graphics/filters/FEDiffuseLighting.h

Index: Source/platform/graphics/filters/FEDiffuseLighting.h
diff --git a/Source/core/platform/graphics/filters/FEDiffuseLighting.h b/Source/platform/graphics/filters/FEDiffuseLighting.h
similarity index 94%
rename from Source/core/platform/graphics/filters/FEDiffuseLighting.h
rename to Source/platform/graphics/filters/FEDiffuseLighting.h
index 44622a4206ed52e3ab122d9dbb99c03e17d9a3ff..f93bc5ac0edef8b6bc3f7607622238fce3f97f96 100644
--- a/Source/core/platform/graphics/filters/FEDiffuseLighting.h
+++ b/Source/platform/graphics/filters/FEDiffuseLighting.h
@@ -23,13 +23,13 @@
 #ifndef FEDiffuseLighting_h
 #define FEDiffuseLighting_h
 
-#include "core/platform/graphics/filters/FELighting.h"
+#include "platform/graphics/filters/FELighting.h"
 
 namespace WebCore {
 
 class LightSource;
 
-class FEDiffuseLighting : public FELighting {
+class PLATFORM_EXPORT FEDiffuseLighting : public FELighting {
 public:
     static PassRefPtr<FEDiffuseLighting> create(Filter*, const Color&, float, float,
         float, float, PassRefPtr<LightSource>);