Expose public interface for composited selection bounds

Source/core/rendering/compositing/CompositedSelectionBound.h

Index: Source/core/rendering/compositing/CompositedSelectionBound.h
diff --git a/Source/platform/fonts/FontPlatformFeatures.h b/Source/core/rendering/compositing/CompositedSelectionBound.h
similarity index 81%
copy from Source/platform/fonts/FontPlatformFeatures.h
copy to Source/core/rendering/compositing/CompositedSelectionBound.h
index da59bc740fe7abeef9c2eab257b6ca30632226be..737cdd037c56cc8faa730d7794b97329cf78dc3a 100644
--- a/Source/platform/fonts/FontPlatformFeatures.h
+++ b/Source/core/rendering/compositing/CompositedSelectionBound.h
@@ -28,22 +28,26 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef FontPlatformFeatures_h
-#define FontPlatformFeatures_h
+#ifndef CompositedSelectionBound_h
+#define CompositedSelectionBound_h
 
-#include "platform/PlatformExport.h"
+#include "platform/geometry/IntRect.h"
+#include "platform/text/TextDirection.h"
 
 namespace WebCore {
 
-class FontPlatformFeatures {
-public:
-    static bool canReturnFallbackFontsForComplexText();
-    static bool canExpandAroundIdeographsInComplexText();
+struct CompositedSelectionBound {
+    CompositedSelectionBound()
+        : layerId(0)
+        , textDirection(LTR)
+    {
+    }
 
-private:
-    FontPlatformFeatures();
+    int layerId;
+    IntRect layerRect;
+    TextDirection textDirection;
 };
 
-}
+} // namespace blink
 
 #endif