Upstream Chrome on iOS source code [9/11].

ios/chrome/browser/ui/tools/tools_coordinator.mm

+// Copyright 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.
+
+// ======                        New Architecture                         =====
+// =         This code is only used in the new iOS Chrome architecture.       =
+// ============================================================================
+
+#import "ios/chrome/browser/ui/tools/tools_coordinator.h"
+
+#import "ios/chrome/browser/ui/animators/zoom_transition_animator.h"
+#import "ios/chrome/browser/ui/presenters/menu_presentation_controller.h"
+#import "ios/chrome/browser/ui/tools/menu_view_controller.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+@interface ToolsCoordinator ()<UIViewControllerTransitioningDelegate>
+@property(nonatomic, strong) MenuViewController* menuViewController;
+@end
+
+@implementation ToolsCoordinator
+@synthesize menuViewController = _menuViewController;
+
+#pragma mark - BrowserCoordinator
+
+- (void)start {
+  self.menuViewController = [[MenuViewController alloc] init];
+  self.menuViewController.modalPresentationStyle = UIModalPresentationCustom;
+  self.menuViewController.transitioningDelegate = self;
+
+  [self.rootViewController presentViewController:self.menuViewController
+                                        animated:YES
+                                      completion:nil];
+}
+
+- (void)stop {
+  [self.menuViewController dismissViewControllerAnimated:YES completion:nil];
+}
+
+#pragma mark - UIViewControllerTransitioningDelegate
+
+- (id<UIViewControllerAnimatedTransitioning>)
+animationControllerForPresentedController:(UIViewController*)presented
+                     presentingController:(UIViewController*)presenting
+                         sourceController:(UIViewController*)source {
+  ZoomTransitionAnimator* animator = [[ZoomTransitionAnimator alloc] init];
+  animator.presenting = YES;
+  [animator selectDelegate:@[ source, presenting ]];
+  return animator;
+}
+
+- (id<UIViewControllerAnimatedTransitioning>)
+animationControllerForDismissedController:(UIViewController*)dismissed {
+  ZoomTransitionAnimator* animator = [[ZoomTransitionAnimator alloc] init];
+  animator.presenting = NO;
+  [animator selectDelegate:@[ dismissed.presentingViewController ]];
+  return animator;
+}
+
+- (UIPresentationController*)
+presentationControllerForPresentedViewController:(UIViewController*)presented
+                        presentingViewController:(UIViewController*)presenting
+                            sourceViewController:(UIViewController*)source {
+  MenuPresentationController* menuPresentation =
+      [[MenuPresentationController alloc]
+          initWithPresentedViewController:presented
+                 presentingViewController:presenting];
+  return menuPresentation;
+}
+
+@end