Don't track FB depth attachment in debug GL context

tools/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