Make cc_unittests and webkit_compositor_unittests executable always

webkit/compositor_bindings/WebScrollbarLayerImpl.h

 // Copyright 2012 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 WebScrollbarLayerImpl_h
 #define WebScrollbarLayerImpl_h
 
 #include <public/WebScrollbarLayer.h>
 #include <wtf/OwnPtr.h>
 
 namespace WebKit {
 class WebLayerImpl;
 
 class WebScrollbarLayerImpl : public WebScrollbarLayer {
 public:
     WebScrollbarLayerImpl(WebScrollbar*, WebScrollbarThemePainter, WebScrollbarThemeGeometry*);
     virtual ~WebScrollbarLayerImpl();
 
     // WebScrollbarLayer implementation.
     virtual WebLayer* layer() OVERRIDE;
     virtual void setScrollLayer(WebLayer*) OVERRIDE;
 
 private:
     OwnPtr<WebLayerImpl> m_layer;
 };
 
 }
 
 #endif // WebScrollbarLayerImpl_h