Rework compositor touch hit testing

Source/core/testing/LayerRect.h

Index: Source/core/testing/LayerRect.h
diff --git a/Source/core/html/ime/Composition.h b/Source/core/testing/LayerRect.h
similarity index 73%
copy from Source/core/html/ime/Composition.h
copy to Source/core/testing/LayerRect.h
index 6562b5f75fd19cc8e80409327f7f8a5881bcf1df..f945681417ff788255e29f66eca4932b87855dd2 100644
--- a/Source/core/html/ime/Composition.h
+++ b/Source/core/testing/LayerRect.h
@@ -28,10 +28,11 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef Composition_h
-#define Composition_h
+#ifndef LayerRect_h
+#define LayerRect_h
+
+#include "core/dom/ClientRect.h"
 
-#include "bindings/v8/ScriptWrappable.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
@@ -39,23 +40,28 @@
 namespace WebCore {
 
 class Node;
-class Range;
 
-class Composition : public RefCounted<Composition>, public ScriptWrappable {
+class LayerRect : public RefCounted<LayerRect> {
 public:
-    static PassRefPtr<Composition> create(Node*, Range*);
-    ~Composition();
+    static PassRefPtr<LayerRect> create(PassRefPtr<Node> node, PassRefPtr<ClientRect> rect)
+    {
+        return adoptRef(new LayerRect(node, rect));
+    }
 
-    Node* text() const { return m_text.get(); }
-    Range* caret() const { return m_caret.get(); }
+    Node* layerRootNode() const { return m_layerRootNode.get(); }
+    ClientRect* layerRelativeRect() const { return m_rect.get(); }
 
 private:
-    Composition(Node*, Range*);
+    LayerRect(PassRefPtr<Node> node, PassRefPtr<ClientRect> rect)
+        : m_layerRootNode(node)
+        , m_rect(rect)
+    {
+    }
 
-    RefPtr<Node> m_text;
-    RefPtr<Range> m_caret;
+    RefPtr<Node> m_layerRootNode;
+    RefPtr<ClientRect> m_rect;
 };
 
 } // namespace WebCore
 
-#endif // Composition_h
+#endif