Reland: Move TouchSelectionController from content to ui

ui/base/touch/touch_editing_controller.cc

 // Copyright (c) 2013 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 "ui/base/touch/touch_editing_controller.h"
 
 namespace ui {
 
 namespace {
 TouchSelectionControllerFactory* g_shared_instance = NULL;
 }  // namespace
 
-SelectionBound::SelectionBound()
-    : type(ui::SelectionBound::EMPTY) {
-}
-
-SelectionBound::~SelectionBound() {
-}
-
-int SelectionBound::GetHeight() const {
-  return edge_bottom.y() - edge_top.y();
-}
-
-bool operator==(const SelectionBound& lhs, const SelectionBound& rhs) {
-  return lhs.type == rhs.type && lhs.edge_top == rhs.edge_top &&
-         lhs.edge_bottom == rhs.edge_bottom;
-}
-
-bool operator!=(const SelectionBound& lhs, const SelectionBound& rhs) {
-  return !(lhs == rhs);
-}
-
-gfx::Rect RectBetweenSelectionBounds(const SelectionBound& b1,
-                                     const SelectionBound& b2) {
-  int all_x[] ={
-      b1.edge_top.x(), b2.edge_top.x(), b1.edge_bottom.x(), b2.edge_bottom.x()
-  };
-  int all_y[] = {
-      b1.edge_top.y(), b2.edge_top.y(), b1.edge_bottom.y(), b2.edge_bottom.y()
-  };
-  const int num_elements = arraysize(all_x);
-  COMPILE_ASSERT(arraysize(all_y) == num_elements, array_size_mismatch);
-
-  int left = *std::min_element(all_x, all_x + num_elements);
-  int top = *std::min_element(all_y, all_y + num_elements);
-  int right = *std::max_element(all_x, all_x + num_elements);
-  int bottom = *std::max_element(all_y, all_y + num_elements);
-
-  return gfx::Rect(left, top, right - left, bottom - top);
-}
-
 TouchSelectionController* TouchSelectionController::create(
     TouchEditable* client_view) {
   if (g_shared_instance)
     return g_shared_instance->create(client_view);
   return NULL;
 }
 
 // static
 void TouchSelectionControllerFactory::SetInstance(
     TouchSelectionControllerFactory* instance) {
   g_shared_instance = instance;
 }
 
 }  // namespace ui