Adding GetStreamInfo functionality (and passing corresponding unit test).

core/cross/command_buffer/effect_cb.h

 /*
  * Copyright 2009, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 57 matching lines @@
   // Gets info about the varying parameters this effects vertex shader needs.
   // Parameters:
   //   info_array: EffectStreamInfoArray to receive info.
   virtual void GetStreamInfo(EffectStreamInfoArray* info_array);
 
  private:
   void Destroy();
   // The command buffer resource ID for the effect.
   command_buffer::ResourceID resource_id_;
   std::vector<EffectHelper::EffectParamDesc> param_descs_;
+  std::vector<EffectHelper::EffectStreamDesc> stream_descs_;
   // A generation counter to dirty ParamCacheCBs.
   unsigned int generation_;
-
   // The renderer that created this effect.
   RendererCB *renderer_;
   DISALLOW_IMPLICIT_CONSTRUCTORS(EffectCB);
 };
 
 }  // namespace o3d
 
 #endif  // O3D_CORE_CROSS_COMMAND_BUFFER_EFFECT_CB_H_