Revert "Revert 164047 - Make GL calls go through subclassable class."

This reverts commit 25afcfe213ffd88f8e9370d4ff1ee23ecf9ae16c.

BUG=155557
TBR=apatrick@chromium.org

Review URL: https://codereview.chromium.org/11264041

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@164095 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 52 insertions, 0 deletions

diff --git a/ui/gl/gl_gl_api_implementation.cc b/ui/gl/gl_gl_api_implementation.cc
new file mode 100644
index 0000000..0a6bf8c
--- /dev/null
+++ b/ui/gl/gl_gl_api_implementation.cc
@@ -0,0 +1,52 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ui/gl/gl_gl_api_implementation.h"
+
+namespace gfx {
+
+RealGLApi* g_real_gl;
+
+void InitializeGLBindingsGL() {
+  g_driver_gl.InitializeBindings();
+  if (!g_real_gl) {
+    g_real_gl = new RealGLApi();
+  }
+  g_real_gl->Initialize(&g_driver_gl);
+  g_current_gl_context = g_real_gl;
+}
+
+void InitializeGLExtensionBindingsGL(GLContext* context) {
+  g_driver_gl.InitializeExtensionBindings(context);
+}
+
+void InitializeDebugGLBindingsGL() {
+  g_driver_gl.InitializeDebugBindings();
+}
+
+void ClearGLBindingsGL() {
+  if (g_real_gl) {
+    delete g_real_gl;
+    g_real_gl = NULL;
+  }
+  g_current_gl_context = NULL;
+  g_driver_gl.ClearBindings();
+}
+
+GLApi::GLApi() {
+}
+
+GLApi::~GLApi() {
+}
+
+RealGLApi::RealGLApi() {
+}
+
+void RealGLApi::Initialize(DriverGL* driver) {
+  driver_ = driver;
+}
+
+}  // namespace gfx
+
+