Make cc_unittests and webkit_compositor_unittests executable always

webkit/compositor_bindings/WebVideoLayerImpl.h

 // Copyright 2011 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 WebVideoLayerImpl_h
 #define WebVideoLayerImpl_h
 
 #include <public/WebVideoLayer.h>
 
 namespace WebKit {
 class WebLayerImpl;
 
 class WebVideoLayerImpl : public WebVideoLayer {
 public:
     explicit WebVideoLayerImpl(WebVideoFrameProvider*);
     virtual ~WebVideoLayerImpl();
 
     // WebVideoLayer implementation.
     virtual WebLayer* layer() OVERRIDE;
     virtual bool active() const OVERRIDE;
 
 private:
     OwnPtr<WebLayerImpl> m_layer;
 };
 
 }
 
 #endif // WebVideoLayerImpl_h