Route selection bounds updates through WebLayerTreeView

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 76%
copy from Source/platform/fonts/FontPlatformFeatures.h
copy to Source/core/rendering/compositing/CompositedSelectionBound.h
index b2feda2d8bcc65ab02f02438d56037c27e5c2e7d..a696a5c2d941f68ab5b5e59ed81f54f9d5f048e9 100644
--- a/Source/platform/fonts/FontPlatformFeatures.h
+++ b/Source/core/rendering/compositing/CompositedSelectionBound.h
@@ -28,20 +28,32 @@
  * 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/graphics/GraphicsLayer.h"
 
 namespace blink {
 
-class FontPlatformFeatures {
-public:
-    static bool canReturnFallbackFontsForComplexText();
-    static bool canExpandAroundIdeographsInComplexText();
+struct CompositedSelectionBound {
+    enum Type {
+        Caret,
+        SelectionLeft,
+        SelectionRight
+    };
 
-private:
-    FontPlatformFeatures();
+    CompositedSelectionBound()
+        : type(Caret)
+        , layer(nullptr)
+    {
+    }
+
+    Type type;
+    GraphicsLayer* layer;
+    IntRect edgeRectInLayer;
+    IntPoint edgeTopInLayer;
+    IntPoint edgeBottomInLayer;
 };
 
 } // namespace blink