Refactor context creation parameters into a struct.

gpu/command_buffer/service/service_utils.cc

+// Copyright (c) 2016 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/service_utils.h"
+
+#include "gpu/command_buffer/common/gles2_cmd_utils.h"
+#include "gpu/command_buffer/service/gpu_preferences.h"
+
+namespace gpu {
+namespace gles2 {
+
+gl::GLContextAttribs GenerateGLContextAttribs(
+    const ContextCreationAttribHelper& attribs_helper,
+    const GpuPreferences& gpu_preferences) {
+  gl::GLContextAttribs attribs;
+  attribs.gpu_preference = attribs_helper.gpu_preference;
+  if (gpu_preferences.use_passthrough_cmd_decoder) {
+    attribs.bind_generates_resource = attribs_helper.bind_generates_resource;
+    attribs.webgl_compatibility_context =
+        IsWebGLContextType(attribs_helper.context_type);
+  }
+  return attribs;
+}
+
+}  // namespace gles2
+}  // namespace gpu