Changed GL enums from GraphicsContext3D to standard versions (Take 2)

Source/web/tests/DrawingBufferTest.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 45 matching lines @@
 
 class WebGraphicsContext3DForTests : public MockWebGraphicsContext3D {
 public:
     WebGraphicsContext3DForTests()
         : MockWebGraphicsContext3D()
         , m_boundTexture(0)
         , m_currentMailboxByte(0) { }
 
     virtual void bindTexture(WGC3Denum target, WebGLId texture)
     {
-        if (target == GraphicsContext3D::TEXTURE_2D) {
+        if (target == GL_TEXTURE_2D) {
             m_boundTexture = texture;
         }
     }
 
     virtual void texImage2D(WGC3Denum target, WGC3Dint level, WGC3Denum internalformat, WGC3Dsizei width, WGC3Dsizei height, WGC3Dint border, WGC3Denum format, WGC3Denum type, const void* pixels)
     {
-        if (target == GraphicsContext3D::TEXTURE_2D && !level) {
+        if (target == GL_TEXTURE_2D && !level) {
             m_textureSizes.set(m_boundTexture, IntSize(width, height));
         }
     }
 
     virtual void genMailboxCHROMIUM(WGC3Dbyte* mailbox)
     {
         ++m_currentMailboxByte;
         WebExternalTextureMailbox temp;
         memset(mailbox, m_currentMailboxByte, sizeof(temp.name));
     }
 
     virtual void produceTextureCHROMIUM(WGC3Denum target, const WGC3Dbyte* mailbox)
     {
-        ASSERT_EQ(target, GraphicsContext3D::TEXTURE_2D);
+        ASSERT_EQ(target, static_cast<WGC3Denum>(GL_TEXTURE_2D));
         m_mostRecentlyProducedSize = m_textureSizes.get(m_boundTexture);
     }
 
     IntSize mostRecentlyProducedSize()
     {
         return m_mostRecentlyProducedSize;
     }
 
 private:
     WebGLId m_boundTexture;
@@ skipping 68 matching lines @@
     EXPECT_EQ(initialSize, webContext()->mostRecentlyProducedSize());
 
     // Prepare one final mailbox and verify that it's the correct size.
     m_drawingBuffer->mailboxReleased(mailbox);
     m_drawingBuffer->markContentsChanged();
     EXPECT_TRUE(m_drawingBuffer->prepareMailbox(&mailbox, 0));
     EXPECT_EQ(initialSize, webContext()->mostRecentlyProducedSize());
 }
 
 } // namespace