Refactor GL bindings so there is no global GLApi or DriverGL.

gpu/command_buffer/service/texture_definition.cc

 // Copyright 2014 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 "gpu/command_buffer/service/texture_definition.h"
 
 #include <stdint.h>
 
 #include <list>
 
@@ skipping 141 matching lines @@
     GLuint texture_id) {
   EGLDisplay egl_display = gl::GLSurfaceEGL::GetHardwareDisplay();
   EGLContext egl_context = eglGetCurrentContext();
 
   DCHECK_NE(EGL_NO_CONTEXT, egl_context);
   DCHECK_NE(EGL_NO_DISPLAY, egl_display);
   DCHECK(glIsTexture(texture_id));
 
   DCHECK(gl::g_driver_egl.ext.b_EGL_KHR_image_base &&
          gl::g_driver_egl.ext.b_EGL_KHR_gl_texture_2D_image &&
-         gl::g_driver_gl.ext.b_GL_OES_EGL_image);
+         gl::g_current_gl_driver->ext.b_GL_OES_EGL_image);
 
   const EGLint egl_attrib_list[] = {
       EGL_GL_TEXTURE_LEVEL_KHR, 0, EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, EGL_NONE};
   EGLClientBuffer egl_buffer = reinterpret_cast<EGLClientBuffer>(texture_id);
   EGLenum egl_target = EGL_GL_TEXTURE_2D_KHR;
 
   EGLImageKHR egl_image = eglCreateImageKHR(
       egl_display, egl_context, egl_target, egl_buffer, egl_attrib_list);
 
   if (egl_image == EGL_NO_IMAGE_KHR) {
@@ skipping 85 matching lines @@
 }  // anonymous namespace
 
 // static
 scoped_refptr<NativeImageBuffer> NativeImageBuffer::Create(GLuint texture_id) {
   switch (gl::GetGLImplementation()) {
 #if !defined(OS_MACOSX)
     case gl::kGLImplementationEGLGLES2:
       return NativeImageBufferEGL::Create(texture_id);
 #endif
     case gl::kGLImplementationMockGL:
+    case gl::kGLImplementationStubGL:
       return new NativeImageBufferStub;
     default:
       NOTREACHED();
       return NULL;
   }
 }
 
 // static
 void TextureDefinition::AvoidEGLTargetTextureReuse() {
   g_avoid_egl_target_texture_reuse = true;
@@ skipping 183 matching lines @@
   return true;
 }
 
 bool TextureDefinition::SafeToRenderFrom() const {
   return level_info_.cleared_rect.Contains(
       gfx::Rect(level_info_.width, level_info_.height));
 }
 
 }  // namespace gles2
 }  // namespace gpu