1 files changed, 18 insertions, 18 deletions
diff --git a/platform/qt/src/headless_backend_qt.cpp b/platform/qt/src/headless_backend_qt.cpp
index 5f95b2f96a..ad3fa42290 100644
--- a/platform/qt/src/headless_backend_qt.cpp
+++ b/platform/qt/src/headless_backend_qt.cpp
@@ -12,19 +12,11 @@
 
 namespace mbgl {
 
-struct QtImpl : public HeadlessBackend::Impl {
-    void activateContext() final {
-        widget.makeCurrent();
-    }
+class QtBackendImpl : public HeadlessBackend::Impl {
+public:
+    ~QtBackendImpl() final = default;
 
-    void deactivateContext() final {
-        widget.doneCurrent();
-    }
-
-    QGLWidget widget;
-};
-
-gl::ProcAddress HeadlessBackend::initializeExtension(const char* name) {
+    gl::ProcAddress getExtensionFunctionPointer(const char* name) final {
 #if QT_VERSION >= 0x050000
         QOpenGLContext* thisContext = QOpenGLContext::currentContext();
         return thisContext->getProcAddress(name);
@@ -32,15 +24,23 @@ gl::ProcAddress HeadlessBackend::initializeExtension(const char* name) {
         const QGLContext* thisContext = QGLContext::currentContext();
         return reinterpret_cast<gl::ProcAddress>(thisContext->getProcAddress(name));
 #endif
-}
+    }
+
+    void activateContext() final {
+        widget.makeCurrent();
+    }
 
-bool HeadlessBackend::hasDisplay() {
-    return true;
+    void deactivateContext() final {
+        widget.doneCurrent();
+    }
+
+private:
+    QGLWidget widget;
 };
 
-void HeadlessBackend::createContext() {
-    assert(!hasContext());
-    impl.reset(new QtImpl);
+void HeadlessBackend::createImpl() {
+    assert(!impl);
+    impl = std::make_unique<QtBackendImpl>();
 }
 
 } // namespace mbgl