Implement Mac Pop-up Dictionary for OOPIF.

third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp

Index: third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp b/third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp
index 1c7732c10882e04a8b954e303cb4170c8dcb44dc..9bd721dc3fb69eb334d6bba1aec61b176effff79 100644
--- a/third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp
+++ b/third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp
@@ -407,6 +407,14 @@ void WebFrameWidgetImpl::setBaseBackgroundColor(WebColor color)
     m_localRoot->frameView()->setBaseBackgroundColor(color);
 }
 
+HitTestResult WebFrameWidgetImpl::coreHitTestResultAt(const WebPoint& pointInViewport)
+{
+    DocumentLifecycle::AllowThrottlingScope throttlingScope(m_localRoot->frame()->document()->lifecycle());
+    FrameView* view = m_localRoot->frameView();
+    IntPoint pointInRootFrame = view->contentsToFrame(view->viewportToContents(pointInViewport));
+    return hitTestResultForRootFramePos(pointInRootFrame);
+}
+
 void WebFrameWidgetImpl::scheduleAnimation()
 {
     if (m_layerTreeView) {