Revert of Move SkGLContext and some GrGLInterface implementations to skgputest module

tools/gpu/gl/mesa/GLContext_mesa.cpp

Index: tools/gpu/gl/mesa/GLContext_mesa.cpp
diff --git a/tools/gpu/gl/mesa/GLContext_mesa.cpp b/tools/gpu/gl/mesa/GLContext_mesa.cpp
deleted file mode 100644
index e6cc7c7f4b7dfc2b295483b5bfd8614c796a9a61..0000000000000000000000000000000000000000
--- a/tools/gpu/gl/mesa/GLContext_mesa.cpp
+++ /dev/null
@@ -1,151 +0,0 @@
-
-/*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include <GL/osmesa.h>
-
-#include "gl/mesa/GLContext_mesa.h"
-#include "gl/GrGLDefines.h"
-
-#include "gl/GrGLAssembleInterface.h"
-#include "gl/GrGLUtil.h"
-#include "osmesa_wrapper.h"
-
-namespace {
-
-static GrGLFuncPtr osmesa_get(void* ctx, const char name[]) {
-    SkASSERT(nullptr == ctx);
-    SkASSERT(OSMesaGetCurrentContext());
-    return OSMesaGetProcAddress(name);
-}
-
-static const GrGLInterface* create_mesa_interface() {
-    if (nullptr == OSMesaGetCurrentContext()) {
-        return nullptr;
-    }
-    return GrGLAssembleInterface(nullptr, osmesa_get);
-}
-
-static const GrGLint gBOGUS_SIZE = 16;
-
-class MesaGLContext : public sk_gpu_test::GLContext {
-private:
-    typedef intptr_t Context;
-
-public:
-    MesaGLContext();
-    ~MesaGLContext() override;
-
-private:
-    void destroyGLContext();
-
-    void onPlatformMakeCurrent() const override;
-
-    void onPlatformSwapBuffers() const override;
-
-    GrGLFuncPtr onPlatformGetProcAddress(const char *) const override;
-
-    Context fContext;
-    GrGLubyte *fImage;
-};
-
-MesaGLContext::MesaGLContext() : fContext(static_cast<Context>(0)), fImage(nullptr) {
-    GR_STATIC_ASSERT(sizeof(Context) == sizeof(OSMesaContext));
-
-    /* Create an RGBA-mode context */
-#if OSMESA_MAJOR_VERSION * 100 + OSMESA_MINOR_VERSION >= 305
-    /* specify Z, stencil, accum sizes */
-    fContext = (Context)OSMesaCreateContextExt(OSMESA_BGRA, 0, 0, 0, nullptr);
-#else
-    fContext = (Context) OSMesaCreateContext(OSMESA_BGRA, nullptr);
-#endif
-    if (!fContext) {
-        SkDebugf("OSMesaCreateContext failed!\n");
-        this->destroyGLContext();
-        return;
-    }
-    // Allocate the image buffer
-    fImage = (GrGLubyte *) sk_malloc_throw(gBOGUS_SIZE * gBOGUS_SIZE *
-                                           4 * sizeof(GrGLubyte));
-    if (!fImage) {
-        SkDebugf("Alloc image buffer failed!\n");
-        this->destroyGLContext();
-        return;
-    }
-
-    // Bind the buffer to the context and make it current
-    if (!OSMesaMakeCurrent((OSMesaContext) fContext,
-                           fImage,
-                           GR_GL_UNSIGNED_BYTE,
-                           gBOGUS_SIZE,
-                           gBOGUS_SIZE)) {
-        SkDebugf("OSMesaMakeCurrent failed!\n");
-        this->destroyGLContext();
-        return;
-    }
-
-    SkAutoTUnref<const GrGLInterface> gl(create_mesa_interface());
-    if (nullptr == gl.get()) {
-        SkDebugf("Could not create GL interface!\n");
-        this->destroyGLContext();
-        return;
-    }
-
-    if (!gl->validate()) {
-        SkDebugf("Could not validate GL interface!\n");
-        this->destroyGLContext();
-        return;
-    }
-
-    this->init(gl.release());
-}
-
-MesaGLContext::~MesaGLContext() {
-    this->teardown();
-    this->destroyGLContext();
-}
-
-void MesaGLContext::destroyGLContext() {
-    if (fImage) {
-        sk_free(fImage);
-        fImage = nullptr;
-    }
-
-    if (fContext) {
-        OSMesaDestroyContext((OSMesaContext) fContext);
-        fContext = static_cast<Context>(0);
-    }
-}
-
-
-void MesaGLContext::onPlatformMakeCurrent() const {
-    if (fContext) {
-        if (!OSMesaMakeCurrent((OSMesaContext) fContext, fImage,
-                               GR_GL_UNSIGNED_BYTE, gBOGUS_SIZE, gBOGUS_SIZE)) {
-            SkDebugf("Could not make MESA context current.");
-        }
-    }
-}
-
-void MesaGLContext::onPlatformSwapBuffers() const { }
-
-GrGLFuncPtr MesaGLContext::onPlatformGetProcAddress(const char *procName) const {
-    return OSMesaGetProcAddress(procName);
-}
-}  // anonymous namespace
-
-
-namespace sk_gpu_test {
-GLContext *CreateMesaGLContext() {
-    MesaGLContext *ctx = new MesaGLContext;
-    if (!ctx->isValid()) {
-        delete ctx;
-        return nullptr;
-    }
-    return ctx;
-}
-}  // sk_gpu_test