gpu: Add support for GL_TEXTURE_RECTANGLE_ARB target to CHROMIUM_copy_texture.

gpu/command_buffer/service/gles2_cmd_decoder.cc

 // 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 "gpu/command_buffer/service/gles2_cmd_decoder.h"
 
 #include <stdio.h>
 
 #include <algorithm>
 #include <list>
@@ skipping 9930 matching lines @@
   if (GL_TEXTURE_2D != target) {
     LOCAL_SET_GL_ERROR(
         GL_INVALID_VALUE, "glCopyTextureCHROMIUM", "invalid texture target");
     return;
   }
 
   Texture* source_texture = source_texture_ref->texture();
   Texture* dest_texture = dest_texture_ref->texture();
   if (dest_texture->target() != GL_TEXTURE_2D ||
       (source_texture->target() != GL_TEXTURE_2D &&
-      source_texture->target() != GL_TEXTURE_EXTERNAL_OES)) {
+       source_texture->target() != GL_TEXTURE_RECTANGLE_ARB &&
+       source_texture->target() != GL_TEXTURE_EXTERNAL_OES)) {
     LOCAL_SET_GL_ERROR(GL_INVALID_VALUE,
                        "glCopyTextureCHROMIUM",
                        "invalid texture target binding");
     return;
   }
 
   int source_width, source_height, dest_width, dest_height;
 
   gfx::GLImage* image =
       source_texture->GetLevelImage(source_texture->target(), 0);
@@ skipping 833 matching lines @@
   }
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/service/gles2_cmd_decoder_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu