VideoCommon: Call Renderer::SurfaceChanged on render parent resize

This is needed because for some reason the WSI for NV Vulkan drivers
doesn't return VK_ERROR_OUT_OF_DATE_KHR, so there is no other way to know
that a resize has occured apart from polling, which is a poor solution for
X11 (since it is blocking).

Source/Core/DolphinWX/FrameTools.cpp

@@ -77,6 +77,7 @@
 
 #include "InputCommon/ControllerInterface/ControllerInterface.h"
 
+#include "VideoCommon/RenderBase.h"
 #include "VideoCommon/VideoBackendBase.h"
 #include "VideoCommon/VideoConfig.h"
 
@@ -907,6 +908,12 @@ void CFrame::OnRenderParentResize(wxSizeEvent& event)
     }
     m_LogWindow->Refresh();
     m_LogWindow->Update();
+
+    // We call Renderer::ChangeSurface here to indicate the size has changed,
+    // but pass the same window handle. This is needed for the Vulkan backend,
+    // otherwise it cannot tell that the window has been resized on some drivers.
+    if (g_renderer)
+      g_renderer->ChangeSurface(GetRenderHandle());
   }
   event.Skip();
 }