Add scope acquire context to simplify MakeCurrent and DoneCurrent calls

src/core/frontend/scope_acquire_context.cpp

@@ -0,0 +1,17 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "core/frontend/emu_window.h"
+#include "core/frontend/scope_acquire_context.h"
+
+namespace Frontend {
+
+ScopeAcquireContext::ScopeAcquireContext(Frontend::GraphicsContext& context) : context{context} {
+    context.MakeCurrent();
+}
+ScopeAcquireContext::~ScopeAcquireContext() {
+    context.DoneCurrent();
+}
+
+} // namespace Frontend