Move view_manager service implementation to //services

mojo/services/view_manager/view_coordinate_conversions.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/view_manager/view_coordinate_conversions.h"
-
-#include "mojo/services/view_manager/server_view.h"
-#include "ui/gfx/geometry/rect.h"
-#include "ui/gfx/geometry/vector2d.h"
-
-namespace mojo {
-namespace service {
-
-namespace {
-
-gfx::Vector2d CalculateOffsetToAncestor(const ServerView* view,
-                                        const ServerView* ancestor) {
-  DCHECK(ancestor->Contains(view));
-  gfx::Vector2d result;
-  for (const ServerView* v = view; v != ancestor; v = v->parent())
-    result += v->bounds().OffsetFromOrigin();
-  return result;
-}
-
-}  // namespace
-
-gfx::Rect ConvertRectBetweenViews(const ServerView* from,
-                                  const ServerView* to,
-                                  const gfx::Rect& rect) {
-  DCHECK(from);
-  if (from == to)
-    return rect;
-
-  if (from->Contains(to)) {
-    const gfx::Vector2d offset(CalculateOffsetToAncestor(to, from));
-    return gfx::Rect(rect.origin() - offset, rect.size());
-  }
-  DCHECK(to->Contains(from));
-  const gfx::Vector2d offset(CalculateOffsetToAncestor(from, to));
-  return gfx::Rect(rect.origin() + offset, rect.size());
-}
-
-}  // namespace service
-}  // namespace mojo