Restructure public side of surfaces service.

mojo/services/public/cpp/surfaces/surfaces_utils.cc

-// Copyright 2014 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 "mojo/services/public/cpp/surfaces/surfaces_utils.h"
-
-#include "mojo/services/public/interfaces/geometry/geometry.mojom.h"
-
-namespace mojo {
-
-namespace {
-TransformPtr GetIdentityTransform() {
-  TransformPtr transform(Transform::New());
-  transform->matrix.resize(16);
-  transform->matrix[0] = 1.f;
-  transform->matrix[5] = 1.f;
-  transform->matrix[10] = 1.f;
-  transform->matrix[15] = 1.f;
-  return transform.Pass();
-}
-}
-
-SharedQuadStatePtr CreateDefaultSQS(const Size& size) {
-  SharedQuadStatePtr sqs = SharedQuadState::New();
-  sqs->content_to_target_transform = GetIdentityTransform();
-  sqs->content_bounds = size.Clone();
-  Rect rect;
-  rect.width = size.width;
-  rect.height = size.height;
-  sqs->visible_content_rect = rect.Clone();
-  sqs->clip_rect = rect.Clone();
-  sqs->is_clipped = false;
-  sqs->opacity = 1.f;
-  sqs->blend_mode = mojo::SK_XFERMODE_kSrc_Mode;
-  sqs->sorting_context_id = 0;
-  return sqs.Pass();
-}
-
-PassPtr CreateDefaultPass(int id, const Rect& rect) {
-  PassPtr pass = Pass::New();
-  pass->id = id;
-  pass->output_rect = rect.Clone();
-  pass->damage_rect = rect.Clone();
-  pass->transform_to_root_target = GetIdentityTransform();
-  pass->has_transparent_background = false;
-  return pass.Pass();
-}
-
-}  // namespace mojo