Revert of Remove webkitConvertPointFromPageToNode() and webkitConvertPointFromNodeToPage()

Source/core/frame/LocalDOMWindow.cpp

Index: Source/core/frame/LocalDOMWindow.cpp
diff --git a/Source/core/frame/LocalDOMWindow.cpp b/Source/core/frame/LocalDOMWindow.cpp
index ed919733412a7be4977fadd6ff04c40b833eca3c..63166456b86981f9116694335f4300516658d77e 100644
--- a/Source/core/frame/LocalDOMWindow.cpp
+++ b/Source/core/frame/LocalDOMWindow.cpp
@@ -69,6 +69,7 @@
 #include "core/frame/Navigator.h"
 #include "core/frame/Screen.h"
 #include "core/frame/Settings.h"
+#include "core/frame/WebKitPoint.h"
 #include "core/html/HTMLFrameOwnerElement.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/inspector/ConsoleMessageStorage.h"
@@ -1343,6 +1344,36 @@ PassRefPtrWillBeRawPtr<CSSRuleList> LocalDOMWindow::getMatchedCSSRules(Element*
     return m_frame->document()->ensureStyleResolver().pseudoCSSRulesForElement(element, pseudoId, rulesToInclude);
 }
 
+PassRefPtrWillBeRawPtr<WebKitPoint> LocalDOMWindow::webkitConvertPointFromNodeToPage(Node* node, const WebKitPoint* p) const
+{
+    if (!node || !p)
+        return nullptr;
+
+    if (!document())
+        return nullptr;
+
+    document()->updateLayoutIgnorePendingStylesheets();
+
+    FloatPoint pagePoint(p->x(), p->y());
+    pagePoint = node->convertToPage(pagePoint);
+    return WebKitPoint::create(pagePoint.x(), pagePoint.y());
+}
+
+PassRefPtrWillBeRawPtr<WebKitPoint> LocalDOMWindow::webkitConvertPointFromPageToNode(Node* node, const WebKitPoint* p) const
+{
+    if (!node || !p)
+        return nullptr;
+
+    if (!document())
+        return nullptr;
+
+    document()->updateLayoutIgnorePendingStylesheets();
+
+    FloatPoint nodePoint(p->x(), p->y());
+    nodePoint = node->convertFromPage(nodePoint);
+    return WebKitPoint::create(nodePoint.x(), nodePoint.y());
+}
+
 double LocalDOMWindow::devicePixelRatio() const
 {
     if (!m_frame)