Current work-in-progress crbug.com/567021

third_party/WebKit/Source/core/css/MediaValuesDynamicInitialViewport.h

Index: third_party/WebKit/Source/core/css/MediaValuesDynamicInitialViewport.h
diff --git a/third_party/WebKit/Source/core/css/MediaValuesDynamicInitialViewport.h b/third_party/WebKit/Source/core/css/MediaValuesDynamicInitialViewport.h
new file mode 100644
index 0000000000000000000000000000000000000000..8ed7f015746c1016198fc9016b1b08a460f2da43
--- /dev/null
+++ b/third_party/WebKit/Source/core/css/MediaValuesDynamicInitialViewport.h
@@ -0,0 +1,25 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MediaValuesDynamicInitialViewport_h
+#define MediaValuesDynamicInitialViewport_h
+
+#include "core/css/MediaValuesDynamic.h"
+
+namespace blink {
+
+class MediaValuesDynamicInitialViewport final : public MediaValuesDynamic {
+public:
+    static MediaValues* create(LocalFrame*);
+
+    double viewportWidth() const override;
+    double viewportHeight() const override;
+
+protected:
+    MediaValuesDynamicInitialViewport(LocalFrame*);
+};
+
+} // namespace blink
+
+#endif // MediaValuesDynamicInitialViewport_h