[ios clean] Refactors ToolsMenu and Tabs presentation

ios/clean/chrome/browser/ui/tab/tab_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.
 
 #import "ios/clean/chrome/browser/ui/tab/tab_coordinator.h"
 
 #include <memory>
 
 #include "base/mac/foundation_util.h"
 #include "base/memory/ptr_util.h"
 #include "ios/chrome/browser/chrome_url_constants.h"
-#import "ios/clean/chrome/browser/ui/animators/zoom_transition_animator.h"
+#import "ios/clean/chrome/browser/ui/animators/zoom_transition_controller.h"
 #import "ios/clean/chrome/browser/ui/commands/tab_commands.h"
 #import "ios/clean/chrome/browser/ui/commands/tab_strip_commands.h"
 #import "ios/clean/chrome/browser/ui/find_in_page/find_in_page_coordinator.h"
 #import "ios/clean/chrome/browser/ui/ntp/ntp_coordinator.h"
 #import "ios/clean/chrome/browser/ui/tab/tab_container_view_controller.h"
 #import "ios/clean/chrome/browser/ui/tab_strip/tab_strip_coordinator.h"
 #import "ios/clean/chrome/browser/ui/toolbar/toolbar_coordinator.h"
 #import "ios/clean/chrome/browser/ui/web_contents/web_coordinator.h"
 #import "ios/shared/chrome/browser/ui/broadcaster/chrome_broadcaster.h"
 #import "ios/shared/chrome/browser/ui/browser_list/browser.h"
 #import "ios/shared/chrome/browser/ui/commands/command_dispatcher.h"
 #import "ios/shared/chrome/browser/ui/coordinators/browser_coordinator+internal.h"
 #import "ios/web/public/web_state/web_state.h"
 #import "ios/web/public/web_state/web_state_observer_bridge.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
-@interface TabCoordinator ()<CRWWebStateObserver,
-                             TabCommands,
-                             UIViewControllerTransitioningDelegate>
+@interface TabCoordinator ()<CRWWebStateObserver, TabCommands>
+@property(nonatomic, strong) ZoomTransitionController* transitionController;
 @property(nonatomic, strong) TabContainerViewController* viewController;
 @property(nonatomic, weak) NTPCoordinator* ntpCoordinator;
 @property(nonatomic, weak) WebCoordinator* webCoordinator;
 @end
 
 @implementation TabCoordinator {
   std::unique_ptr<web::WebStateObserverBridge> _webStateObserver;
 }
 
+@synthesize transitionController = _transitionController;
 @synthesize presentationKey = _presentationKey;
 @synthesize viewController = _viewController;
 @synthesize webState = _webState;
 @synthesize webCoordinator = _webCoordinator;
 @synthesize ntpCoordinator = _ntpCoordinator;
 
 #pragma mark - BrowserCoordinator
 
 - (void)start {
   self.viewController = [self newTabContainer];
-  self.viewController.transitioningDelegate = self;
+  self.transitionController = [[ZoomTransitionController alloc] init];
+  self.transitionController.presentationKey = self.presentationKey;
+  self.viewController.transitioningDelegate = self.transitionController;
   self.viewController.modalPresentationStyle = UIModalPresentationCustom;
   _webStateObserver =
       base::MakeUnique<web::WebStateObserverBridge>(self.webState, self);
 
   [self.browser->broadcaster()
       broadcastValue:@"tabStripVisible"
             ofObject:self.viewController
             selector:@selector(broadcastTabStripVisible:)];
 
   CommandDispatcher* dispatcher = self.browser->dispatcher();
@@ skipping 110 matching lines @@
 - (void)webState:(web::WebState*)webState
     didStartNavigation:(web::NavigationContext*)navigation {
   if (self.ntpCoordinator) {
     [self.ntpCoordinator stop];
     [self removeChildCoordinator:self.ntpCoordinator];
     self.viewController.contentViewController =
         self.webCoordinator.viewController;
   }
 }
 
-#pragma mark - UIViewControllerTransitioningDelegate
-
-- (id<UIViewControllerAnimatedTransitioning>)
-animationControllerForPresentedController:(UIViewController*)presented
-                     presentingController:(UIViewController*)presenting
-                         sourceController:(UIViewController*)source {
-  ZoomTransitionAnimator* animator = [[ZoomTransitionAnimator alloc] init];
-  animator.presenting = YES;
-  animator.presentationKey = self.presentationKey;
-  [animator selectDelegate:@[ source, presenting ]];
-  return animator;
-}
-
-- (id<UIViewControllerAnimatedTransitioning>)
-animationControllerForDismissedController:(UIViewController*)dismissed {
-  ZoomTransitionAnimator* animator = [[ZoomTransitionAnimator alloc] init];
-  animator.presenting = NO;
-  animator.presentationKey = self.presentationKey;
-  [animator selectDelegate:@[ dismissed.presentingViewController ]];
-  return animator;
-}
-
 #pragma mark - TabCommands
 
 - (void)loadURL:(web::NavigationManager::WebLoadParams)params {
   self.webState->GetNavigationManager()->LoadURLWithParams(params);
 }
 
 #pragma mark - TabStripCommands
 
 - (void)showTabStrip {
   self.viewController.tabStripVisible = YES;
 }
 
 @end