Qtwebenginewidgets doesn't work with platform wayland

applied the patch:

GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1
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Reading symbols from ./fancybrowser...done.
(gdb) r -platform wayland
Starting program: /media/choury/39ee5957-e8c7-404d-90b1-f31f764872af/qt-build/qtwebengine/examples/webenginewidgets/fancybrowser/fancybrowser -platform wayland
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffe1542700 (LWP 3612)]
Using Wayland-EGL
[New Thread 0x7fffd95f9700 (LWP 3613)]

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff12fec33 in base::RunLoop::BeforeRun (this=0x5a4060) at ../../../src/3rdparty/chromium/base/run_loop.cc:87
87 previous_run_loop_ = loop_->run_loop_;
(gdb) bt
#0 0x00007ffff12fec33 in base::RunLoop::BeforeRun (this=0x5a4060) at ../../../src/3rdparty/chromium/base/run_loop.cc:87
#1 0x00007fffed35fccf in WebEngineContext::WebEngineContext (this=0xce9e80) at ../../../src/core/web_engine_context.cpp:250
#2 0x00007fffed35f4bc in WebEngineContext::current () at ../../../src/core/web_engine_context.cpp:154
#3 0x00007fffed3527b6 in QtWebEngineCore::WebContentsAdapterPrivate::WebContentsAdapterPrivate (this=0xce7fe0) at ../../../src/core/web_contents_adapter.cpp:327
#4 0x00007fffed352b5c in QtWebEngineCore::WebContentsAdapter::WebContentsAdapter (this=0x6792c0, webContents=0x0) at ../../../src/core/web_contents_adapter.cpp:364
#5 0x00007ffff7fcc46b in QWebEnginePagePrivate::QWebEnginePagePrivate (this=0xce9d90, _profile=0x0) at api/qwebenginepage.cpp:181
#6 0x00007ffff7fcd210 in QWebEnginePage::QWebEnginePage (this=0x677dd0, parent=0x505f20) at api/qwebenginepage.cpp:461
#7 0x00007ffff7fdbd54 in QWebEngineView::page (this=0x505f20) at api/qwebengineview.cpp:136
#8 0x00007ffff7fdbdb4 in QWebEngineView::load (this=0x505f20, url=...) at api/qwebengineview.cpp:148
#9 0x000000000040444c in MainWindow::MainWindow (this=0xbd0c20, url=...) at mainwindow.cpp:77
#10 0x000000000040410f in main (argc=1, argv=0x7fffffffe3d8) at main.cpp:54
(gdb) p loop_
$1 = (base::MessageLoop *) 0x0
(gdb) l
82 // Allow Quit to be called before Run.
83 if (quit_called_)
84 return false;
85
86 // Push RunLoop stack:
87 previous_run_loop_ = loop_->run_loop_;
88 run_depth_ = previous_run_loop_? previous_run_loop_->run_depth_ + 1 : 1;
89 loop_->run_loop_ = this;
90
91 running_ = true;
(gdb) fr 1
#1 0x00007fffed35fccf in WebEngineContext::WebEngineContext (this=0xce9e80) at ../../../src/core/web_engine_context.cpp:250
250 m_runLoop->BeforeRun();
(gdb) p m_runLoop
$2 = {impl_ = {data_ = {<base::DefaultDeleter<base::RunLoop>> =

, ptr = 0x5a4060}}}
(gdb) l
245 m_contentRunner->Initialize(contentMainParams);
246 m_browserRunner->Initialize(content::MainFunctionParams(*CommandLine::ForCurrentProcess()));
247
248 // Once the MessageLoop has been created, attach a top-level RunLoop.
249 m_runLoop.reset(new base::RunLoop);
250 m_runLoop->BeforeRun();
251
252 m_devtools.reset(new DevToolsHttpHandlerDelegateQt);
253 // Force the initialization of MediaCaptureDevicesDispatcher on the UI
254 // thread to avoid a thread check assertion in its constructor when it
(gdb) q
A debugging session is active.

Inferior 1 [process 3608] will be killed.

Quit anyway? (y or n)