Fix recovery after sub-process crashv6.4.0-beta3

We no longer get RenderViewChanged signal but only a RenderViewReady
signal after a crash.

Change-Id: Ib14cb3092e46e699d55bc252c9dddca524f6b8b7
Reviewed-by: Michael Brüning <michael.bruning@qt.io>
(cherry picked from commit 2dfde66e1b9f95765cc61ae9985f5e7b58a8cb02)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/core/web_contents_delegate_qt.cpp b/src/core/web_contents_delegate_qt.cpp
index 512c9a403..66598203e 100644
--- a/src/core/web_contents_delegate_qt.cpp
+++ b/src/core/web_contents_delegate_qt.cpp
@@ -308,6 +308,17 @@ void WebContentsDelegateQt::RenderViewHostChanged(content::RenderViewHost *, con
     }
 }
 
+void WebContentsDelegateQt::RenderViewReady()
+{
+    // The render view might have returned after a crash without us getting a RenderViewHostChanged call
+    content::RenderWidgetHostView *newHostView = web_contents()->GetRenderWidgetHostView();
+    if (newHostView) {
+        auto *rwhv = static_cast<RenderWidgetHostViewQt *>(newHostView);
+        Q_ASSERT(rwhv->delegate());
+        rwhv->delegate()->updateAdapterClientIfNeeded(m_viewClient);
+    }
+}
+
 void WebContentsDelegateQt::emitLoadStarted(bool isErrorPage)
 {
     for (auto &&wc : m_certificateErrorControllers)