Move SkGLContext and some GrGLInterface implementations to skgputest module

src/gpu/gl/debug/GrProgramObj.cpp

-/*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "GrProgramObj.h"
-#include "GrShaderObj.h"
-
-void GrProgramObj::AttachShader(GrShaderObj *shader) {
-    shader->ref();
-    fShaders.push_back(shader);
-}
-
-void GrProgramObj::deleteAction() {
-
-    // shaders are automatically detached from a deleted program. They will only be
-    // deleted if they were marked for deletion by a prior call to glDeleteShader
-    for (int i = 0; i < fShaders.count(); ++i) {
-        fShaders[i]->unref();
-    }
-    fShaders.reset();
-
-    this->INHERITED::deleteAction();
-}