gpu: Add support for GLX_EXT_texture_from_pixmap extension.

gpu/command_buffer/service/gles2_cmd_decoder_autogen.h

 // 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.
 
 // This file is auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // DO NOT EDIT!
 
 // It is included by gles2_cmd_decoder.cc
 #ifndef GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_AUTOGEN_H_
@@ skipping 2784 matching lines @@
         GL_INVALID_ENUM, "glConsumeTextureCHROMIUM", "target GL_INVALID_ENUM");
     return error::kNoError;
   }
   if (mailbox == NULL) {
     return error::kOutOfBounds;
   }
   DoConsumeTextureCHROMIUM(target, mailbox);
   return error::kNoError;
 }
 
+error::Error GLES2DecoderImpl::HandleTexImagePixmap2DCHROMIUM(
+    uint32 immediate_data_size, const gles2::TexImagePixmap2DCHROMIUM& c) {
+  GLenum target = static_cast<GLenum>(c.target);
+  GLuint pixmapId = static_cast<GLuint>(c.pixmapId);
+  if (!validators_->texture_bind_target.IsValid(target)) {
+    SetGLError(
+        GL_INVALID_ENUM, "glTexImagePixmap2DCHROMIUM", "target GL_INVALID_ENUM");  // NOLINT
+    return error::kNoError;
+  }
+  DoTexImagePixmap2DCHROMIUM(target, pixmapId);
+  return error::kNoError;
+}
+
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_AUTOGEN_H_