Loads CastEglPlatform implementation from shared library.

chromecast/ozone/surface_factory_cast.h

Index: chromecast/ozone/surface_factory_cast.h
diff --git a/chromecast/ozone/surface_factory_cast.h b/chromecast/ozone/surface_factory_cast.h
index cd39b5561776c2ccbd3a07636c66f1f8e1713613..2dcb7f402a7735ffcc54347aebad8d97d10e38e8 100644
--- a/chromecast/ozone/surface_factory_cast.h
+++ b/chromecast/ozone/surface_factory_cast.h
@@ -11,10 +11,10 @@
 #include "ui/ozone/public/surface_factory_ozone.h"
 
 namespace chromecast {
-namespace ozone {
-
 class CastEglPlatform;
 
+namespace ozone {
+
 // SurfaceFactoryOzone implementation for OzonePlatformCast.
 class SurfaceFactoryCast : public ui::SurfaceFactoryOzone {
  public: