Update SurfaceTexture interface for forward compatibility

class IGraphicBufferAlloc;

class String8;

class BufferQueue : public RefBase {

public:

    BufferQueue(bool allowSynchronousMode) {};

    status_t setBufferCount(int bufferCount) { return 0; }

};

class SurfaceTexture : public BnSurfaceTexture {

public:

    enum { MIN_UNDEQUEUED_BUFFERS = 2 };

    // fences should be used to synchronize access to buffers if that behavior

    // is enabled at compile-time.

    SurfaceTexture(GLuint tex, bool allowSynchronousMode = true,

            GLenum texTarget = GL_TEXTURE_EXTERNAL_OES, bool useFenceSync = true);

            GLenum texTarget = GL_TEXTURE_EXTERNAL_OES, bool useFenceSync = true,

            const sp<BufferQueue> &bufferQueue = 0);

    virtual ~SurfaceTexture();

}

SurfaceTexture::SurfaceTexture(GLuint tex, bool allowSynchronousMode,

        GLenum texTarget, bool useFenceSync) :

        GLenum texTarget, bool useFenceSync, const sp<BufferQueue> &bufferQueue) :

    mDefaultWidth(1),

    mDefaultHeight(1),

    mPixelFormat(PIXEL_FORMAT_RGBA_8888),