From e433f472a765d738238a6b380060ce15c4910148 Mon Sep 17 00:00:00 2001
From: Jedrzej Nowacki <jedrzej.nowacki@nokia.com>
Date: Mon, 28 Sep 2009 17:27:19 +0200
Subject: Fix QWebHistory autotest crashes

https://bugs.webkit.org/show_bug.cgi?id=29803

Reviewed-by: Simon Hausmann
Cherry-picked-by: Simon Hausmann
---
 src/3rdparty/webkit/WebKit/qt/Api/qwebpage.cpp | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/3rdparty/webkit/WebKit/qt/Api/qwebpage.cpp b/src/3rdparty/webkit/WebKit/qt/Api/qwebpage.cpp
index a6942a4..af27788 100644
--- a/src/3rdparty/webkit/WebKit/qt/Api/qwebpage.cpp
+++ b/src/3rdparty/webkit/WebKit/qt/Api/qwebpage.cpp
@@ -1491,9 +1491,11 @@ QWebPage::QWebPage(QObject *parent)
 */
 QWebPage::~QWebPage()
 {
-    FrameLoader *loader = d->mainFrame->d->frame->loader();
-    if (loader)
-        loader->detachFromParent();
+    if (d->mainFrame) {
+        FrameLoader *loader = d->mainFrame->d->frame->loader();
+        if (loader)
+            loader->detachFromParent();
+    }
     if (d->inspector)
         d->inspector->setPage(0);
     delete d;
@@ -1520,6 +1522,7 @@ QWebFrame *QWebPage::mainFrame() const
 */
 QWebFrame *QWebPage::currentFrame() const
 {
+    d->createMainFrame();
     return static_cast<WebCore::FrameLoaderClientQt *>(d->page->focusController()->focusedOrMainFrame()->loader()->client())->webFrame();
 }
 
@@ -1545,6 +1548,7 @@ QWebFrame* QWebPage::frameAt(const QPoint& pos) const
 */
 QWebHistory *QWebPage::history() const
 {
+    d->createMainFrame();
     return &d->history;
 }
 
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