Move SkGLContext and some GrGLInterface implementations to skgputest module

src/gpu/gl/debug/GrFrameBufferObj.h

-/*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef GrFrameBufferObj_DEFINED
-#define GrFrameBufferObj_DEFINED
-
-#include "GrFakeRefObj.h"
-class GrFBBindableObj;
-
-////////////////////////////////////////////////////////////////////////////////
-// TODO: when a framebuffer obj is bound the GL_SAMPLES query must return 0
-// TODO: GL_STENCIL_BITS must also be redirected to the framebuffer
-class GrFrameBufferObj : public GrFakeRefObj {
-    GR_DEFINE_CREATOR(GrFrameBufferObj);
-
-public:
-    GrFrameBufferObj()
-        : GrFakeRefObj()
-        , fBound(false)
-        , fColorBuffer(nullptr)
-        , fDepthBuffer(nullptr)
-        , fStencilBuffer(nullptr) {
-    }
-
-    virtual ~GrFrameBufferObj() {
-        fColorBuffer = nullptr;
-        fDepthBuffer = nullptr;
-        fStencilBuffer = nullptr;
-    }
-
-    void setBound()         { fBound = true; }
-    void resetBound()       { fBound = false; }
-    bool getBound() const   { return fBound; }
-
-    void setColor(GrFBBindableObj *buffer);
-    GrFBBindableObj *getColor()       { return fColorBuffer; }
-
-    void setDepth(GrFBBindableObj *buffer);
-    GrFBBindableObj *getDepth()       { return fDepthBuffer; }
-
-    void setStencil(GrFBBindableObj *buffer);
-    GrFBBindableObj *getStencil()     { return fStencilBuffer; }
-
-    void deleteAction() override {
-
-        setColor(nullptr);
-        setDepth(nullptr);
-        setStencil(nullptr);
-
-        this->INHERITED::deleteAction();
-    }
-
-protected:
-private:
-    bool fBound;        // is this frame buffer currently bound via "glBindFramebuffer"?
-    GrFBBindableObj * fColorBuffer;
-    GrFBBindableObj * fDepthBuffer;
-    GrFBBindableObj * fStencilBuffer;
-
-    typedef GrFakeRefObj INHERITED;
-};
-
-#endif // GrFrameBufferObj_DEFINED