Qt WebKit side handling for https://bugs.webkit.org/show_bug.cgi?id=119964

gistfile1.cpp

diff --git a/Source/WebKit/qt/WebCoreSupport/QWebFrameAdapter.cpp b/Source/WebKit/qt/WebCoreSupport/QWebFrameAdapter.cpp
index 2af19ed..bd21adb 100644
--- a/Source/WebKit/qt/WebCoreSupport/QWebFrameAdapter.cpp
+++ b/Source/WebKit/qt/WebCoreSupport/QWebFrameAdapter.cpp
@@ -90,8 +90,14 @@ QWebFrameData::QWebFrameData(WebCore::Page* parentPage, WebCore::Frame* parentFr
     , marginWidth(0)
     , marginHeight(0)
 {
-    frameLoaderClient = new FrameLoaderClientQt();
-    frame = Frame::create(page, ownerElement, frameLoaderClient);
+    // mainframe is already created in WebCore::Page, just use it.
+    if (!parentFrame || !ownerElement) {
+        frame = parentPage->mainFrame();
+        frameLoaderClient = static_cast<FrameLoaderClientQt*>(frame->loader().client());
+    } else {
+        frameLoaderClient = new FrameLoaderClientQt();
+        frame = Frame::create(page, ownerElement, frameLoaderClient);
+    }
 
     // FIXME: All of the below should probably be moved over into WebCore
     frame->tree()->setName(name);
diff --git a/Source/WebKit/qt/WebCoreSupport/QWebPageAdapter.cpp b/Source/WebKit/qt/WebCoreSupport/QWebPageAdapter.cpp
index cf6a1d8..a10da10 100644
--- a/Source/WebKit/qt/WebCoreSupport/QWebPageAdapter.cpp
+++ b/Source/WebKit/qt/WebCoreSupport/QWebPageAdapter.cpp
@@ -228,6 +228,7 @@ void QWebPageAdapter::initializeWebCorePage()
     pageClients.editorClient = new EditorClientQt(this);
     pageClients.dragClient = new DragClientQt(pageClients.chromeClient);
     pageClients.inspectorClient = new InspectorClientQt(this);
+    pageClients.loaderClientForMainFrame = new FrameLoaderClientQt();
     page = new Page(pageClients);
 
 #if ENABLE(GEOLOCATION)