gpu: Add support for GLX_EXT_texture_from_pixmap extension.

gpu/command_buffer/service/gles2_cmd_decoder_autogen.h

Index: gpu/command_buffer/service/gles2_cmd_decoder_autogen.h
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_autogen.h b/gpu/command_buffer/service/gles2_cmd_decoder_autogen.h
index cf8069b29d486ee5dfdd97f462343bef5f7b8ae2..bd8820b5fc96729446dc0ffdd097b46add410284 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_autogen.h
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_autogen.h
@@ -2839,5 +2839,18 @@ error::Error GLES2DecoderImpl::HandleConsumeTextureCHROMIUMImmediate(
   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_