Crash when clicking a link in desktop G+

There is an oxide crash when clicking on a link when in g+, any link that should popup externally seems to trigger it.

The responsible is a NULL entry pointer (NavigationEntry) as the LoadSucceeded call is being issued. The URL browsed to is a transient "about:blank" right before the actual target url is hit.

Here is a small stacktrace:

0x00007fffc040ade5 in oxide::WebView::DidFinishLoad (this=0x129ab30, render_frame_host=<optimized out>, validated_url=...)
    at ../../../../trunk/shared/browser/oxide_web_view.cc:1031
1031 client_->LoadSucceeded(validated_url, entry->GetHttpStatusCode());
(gdb) bt
#0 0x00007fffc040ade5 in oxide::WebView::DidFinishLoad (this=0x129ab30, render_frame_host=<optimized out>, validated_url=...)
    at ../../../../trunk/shared/browser/oxide_web_view.cc:1031
#1 0x00007fffc077b7a7 in content::WebContentsImpl::OnDidFinishLoad (this=<optimized out>, url=...)
    at ../../../../trunk/third_party/chromium/src/content/browser/web_contents/web_contents_impl.cc:3001
#2 0x00007fffc07836d1 in DispatchToMethodImpl<content::WebContentsImpl, void (content::WebContentsImpl::*)(GURL const&), GURL, 0ul> (arg=..., method=<optimized out>,
    obj=0x1272090) at ../../../../trunk/third_party/chromium/src/base/tuple.h:254
#3 DispatchToMethod<content::WebContentsImpl, void (content::WebContentsImpl::*)(GURL const&), GURL> (arg=..., method=
    (void (content::WebContentsImpl::*)(content::WebContentsImpl * const, const GURL &)) 0x7fffc077b6e0 <content::WebContentsImpl::OnDidFinishLoad(GURL const&)>, obj=0x1272090)
    at ../../../../trunk/third_party/chromium/src/base/tuple.h:261
#4 Dispatch<content::WebContentsImpl, content::WebContentsImpl, void, void (content::WebContentsImpl::*)(GURL const&)> (sender=<optimized out>, parameter=0x0, func=
    (void (content::WebContentsImpl::*)(content::WebContentsImpl * const, const GURL &)) 0x7fffc077b6e0 <content::WebContentsImpl::OnDidFinishLoad(GURL const&)>, obj=0x1272090,
    msg=0x7fff884c47e0) at ../../../../trunk/third_party/chromium/src/content/common/frame_messages.h:730
#5 content::WebContentsImpl::OnMessageReceived (this=0x1272090, render_view_host=0x0, render_frame_host=<optimized out>, message=...)
    at ../../../../trunk/third_party/chromium/src/content/browser/web_contents/web_contents_impl.cc:579
#6 0x00007fffc05a8b33 in content::RenderFrameHostImpl::OnMessageReceived (this=0x1267690, msg=...)
    at ../../../../trunk/third_party/chromium/src/content/browser/frame_host/render_frame_host_impl.cc:367
#7 0x00007fffc06c9aae in content::RenderProcessHostImpl::OnMessageReceived (this=0x11bff70, msg=...)
    at ../../../../trunk/third_party/chromium/src/content/browser/renderer_host/render_process_host_impl.cc:1565
#8 0x00007fffc1047620 in IPC::ChannelProxy::Context::OnDispatchMessage (this=0x10a6f60, message=...) at ../../../../trunk/third_party/chromium/src/ipc/ipc_channel_proxy.cc:294
#9 0x00007fffc0433d41 in Run (this=0x7fffffffd378) at ../../../../trunk/third_party/chromium/src/base/callback.h:396
#10 base::debug::TaskAnnotator::RunTask (this=this@entry=0xfe2f10, queue_function=queue_function@entry=0x7fffc31828c6 "MessageLoop::PostTask",
    run_function=run_function@entry=0x7fffc31828e5 "MessageLoop::RunTask", pending_task=...) at ../../../../trunk/third_party/chromium/src/base/debug/task_annotator.cc:62
#11 0x00007fffc0450044 in base::MessageLoop::RunTask (this=this@entry=0xfe2db0, pending_task=...)
    at ../../../../trunk/third_party/chromium/src/base/message_loop/message_loop.cc:473
#12 0x00007fffc0450321 in base::MessageLoop::DeferOrRunPendingTask (this=this@entry=0xfe2db0, pending_task=...)
    at ../../../../trunk/third_party/chromium/src/base/message_loop/message_loop.cc:482
#13 0x00007fffc04509fb in base::MessageLoop::DoWork (this=0xfe2db0) at ../../../../trunk/third_party/chromium/src/base/message_loop/message_loop.cc:594
#14 0x00007fffc03c7158 in oxide::qt::MessagePump::RunOneTask (this=0xfe1d70) at ../../../../trunk/qt/core/browser/oxide_qt_message_pump.cc:67
#15 0x00007ffff7ba96f3 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007ffff6f17b2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007ffff6f1d000 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007ffff7b77c2b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007ffff7b79c9b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007ffff7bd0843 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007ffff4699c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007ffff4699f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007ffff4699fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007ffff7bd0c57 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007ffff7b753e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007ffff7b7d02c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x000000000045ec4c in BrowserApplication::run() ()
#28 0x0000000000452ebb in main ()