Revert of Add Gr*Proxy classes

include/private/GrTextureProxy.h

-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef GrTextureProxy_DEFINED
-#define GrTextureProxy_DEFINED
-
-#include "GrSurfaceProxy.h"
-#include "GrTexture.h"
-
-class GrTextureProvider;
-
-// This class delays the acquisition of textures until they are actually required
-class GrTextureProxy : public GrSurfaceProxy {
-public:
-    // TODO: need to refine ownership semantics of 'srcData' if we're in completely
-    // deferred mode
-    static sk_sp<GrTextureProxy> Make(const GrSurfaceDesc&, SkBackingFit, SkBudgeted,
-                                      const void* srcData = nullptr, size_t rowBytes = 0);
-    static sk_sp<GrTextureProxy> Make(sk_sp<GrTexture>);
-
-    // TODO: add asRenderTargetProxy variants
-    GrTextureProxy* asTextureProxy() override { return this; }
-    const GrTextureProxy* asTextureProxy() const override { return this; }
-
-    // Actually instantiate the backing texture, if necessary
-    GrTexture* instantiate(GrTextureProvider* texProvider);
-
-private:
-    GrTextureProxy(const GrSurfaceDesc& desc, SkBackingFit fit, SkBudgeted budgeted,
-                   const void* /*srcData*/, size_t /*rowBytes*/)
-        : INHERITED(desc, fit, budgeted) {
-        // TODO: Handle 'srcData' here
-    }
-
-    // Wrapped version
-    GrTextureProxy(sk_sp<GrTexture> tex);
-
-    // For wrapped textures we store it here.
-    // For deferred proxies we will fill this in when we need to instantiate the deferred resource
-    sk_sp<GrTexture> fTexture;
-
-    typedef GrSurfaceProxy INHERITED;
-};
-
-#endif