Rework compositor touch hit testing

Source/core/testing/LayerRectList.cpp

Index: Source/core/testing/LayerRectList.cpp
diff --git a/Source/core/html/ime/Composition.cpp b/Source/core/testing/LayerRectList.cpp
similarity index 75%
copy from Source/core/html/ime/Composition.cpp
copy to Source/core/testing/LayerRectList.cpp
index e74501bcd8637afa85872dae701e91f04827e1ee..578b407a6f499f084798bd36ba2d7d3ce9452d21 100644
--- a/Source/core/html/ime/Composition.cpp
+++ b/Source/core/testing/LayerRectList.cpp
@@ -29,27 +29,38 @@
  */
 
 #include "config.h"
-#include "core/html/ime/Composition.h"
+#include "core/testing/LayerRectList.h"
 
+#include "core/dom/ClientRect.h"
 #include "core/dom/Node.h"
-#include "core/dom/Range.h"
+#include "core/testing/LayerRect.h"
 
 namespace WebCore {
 
-Composition::~Composition()
+LayerRectList::LayerRectList()
 {
 }
 
-PassRefPtr<Composition> Composition::create(Node* text, Range* caret)
+LayerRectList::~LayerRectList()
 {
-    return adoptRef(new Composition(text, caret));
 }
 
-Composition::Composition(Node* text, Range* caret)
-    : m_text(text)
-    , m_caret(caret)
+unsigned LayerRectList::length() const
 {
-    ScriptWrappable::init(this);
+    return m_list.size();
+}
+
+LayerRect* LayerRectList::item(unsigned index)
+{
+    if (index >= m_list.size())
+        return 0;
+
+    return m_list[index].get();
+}
+
+void LayerRectList::append(PassRefPtr<Node> layerRootNode, PassRefPtr<ClientRect> layerRelativeRect)
+{
+    m_list.append(LayerRect::create(layerRootNode, layerRelativeRect));
 }
 
 } // namespace WebCore