Add support for vertex and geometry shader textures

src/gpu/gl/GrGLTexture.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef GrGLTexture_DEFINED
 #define GrGLTexture_DEFINED
@@ skipping 18 matching lines @@
     };
 
     struct IDDesc {
         GrGLTextureInfo             fInfo;
         GrGpuResource::LifeCycle    fLifeCycle;
     };
 
     GrGLTexture(GrGLGpu*, const GrSurfaceDesc&, const IDDesc&);
     GrGLTexture(GrGLGpu*, const GrSurfaceDesc&, const IDDesc&, bool wasMipMapDataProvided);
 
+    GrSLType getSamplerType() const override;
+
     GrBackendObject getTextureHandle() const override;
 
     void textureParamsModified() override { fTexParams.invalidate(); }
 
     // These functions are used to track the texture parameters associated with the texture.
     const TexParams& getCachedTexParams(GrGpu::ResetTimestamp* timestamp) const {
         *timestamp = fTexParamsTimestamp;
         return fTexParams;
     }
 
@@ skipping 29 matching lines @@
     GrGLTextureInfo                 fInfo;
 
     // We track this separately from GrGpuResource because this may be both a texture and a render
     // target, and the texture may be wrapped while the render target is not.
     LifeCycle                       fTextureIDLifecycle;
 
     typedef GrTexture INHERITED;
 };
 
 #endif