Fix recursion in WebEngineContext constructor

Gpu process startup needs sync point manager and it
can ask for current web engine context, while is being created.
Moreover this call will take place from GPU thread, so
it leads to race condition.

Done-With: Kirill Burtsev<kirill.burtsev@qt.io>
Fixes: QTBUG-72113
Change-Id: I43bf37da0cf28ccb5c5cee0d82ed541053016e2e
Reviewed-by: Kirill Burtsev <kirill.burtsev@qt.io>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/core/web_engine_context.cpp b/src/core/web_engine_context.cpp
index a1c647f40..0763b9dac 100644
--- a/src/core/web_engine_context.cpp
+++ b/src/core/web_engine_context.cpp
@@ -270,6 +270,8 @@ WebEngineContext *WebEngineContext::current()
         qAddPostRoutine(WebEngineContext::destroyContextPostRoutine);
         // Add a false reference so there is no race between unreferencing m_handle and a global QApplication.
         m_handle->AddRef();
+        // This is need since gpu process start requires sync point manager;
+        m_handle->initialize();
     }
     return m_handle.get();
 }
@@ -329,6 +331,9 @@ WebEngineContext::WebEngineContext()
     : m_mainDelegate(new ContentMainDelegateQt)
     , m_globalQObject(new QObject())
     , m_syncPointManager(new gpu::SyncPointManager())
+{}
+
+void WebEngineContext::initialize()
 {
     base::TaskScheduler::Create("Browser");
     m_contentRunner.reset(content::ContentMainRunner::Create());