Add window open and close delegate methods to CWVUIDelegate.

ios/web_view/internal/cwv_web_view.mm

 // 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.
 
 #import "ios/web_view/public/cwv_web_view.h"
 
 #include <memory>
 #include <utility>
 
 #import "base/ios/weak_nsobject.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/sys_string_conversions.h"
 #import "ios/web/public/navigation_manager.h"
 #include "ios/web/public/referrer.h"
 #include "ios/web/public/reload_type.h"
 #import "ios/web/public/web_state/context_menu_params.h"
 #import "ios/web/public/web_state/js/crw_js_injection_receiver.h"
 #import "ios/web/public/web_state/ui/crw_web_delegate.h"
 #import "ios/web/public/web_state/web_state.h"
 #import "ios/web/public/web_state/web_state_delegate_bridge.h"
 #import "ios/web/public/web_state/web_state_observer_bridge.h"
 #import "ios/web_view/internal/cwv_html_element_internal.h"
+#import "ios/web_view/internal/cwv_navigation_action_internal.h"
 #import "ios/web_view/internal/cwv_web_view_configuration_internal.h"
 #import "ios/web_view/internal/translate/web_view_translate_client.h"
 #include "ios/web_view/internal/web_view_browser_state.h"
 #import "ios/web_view/internal/web_view_java_script_dialog_presenter.h"
 #import "ios/web_view/internal/web_view_web_state_policy_decider.h"
 #import "ios/web_view/public/cwv_navigation_delegate.h"
 #import "ios/web_view/public/cwv_ui_delegate.h"
 #import "ios/web_view/public/cwv_web_view_configuration.h"
 #import "net/base/mac/url_conversions.h"
 #include "ui/base/page_transition_types.h"
@@ skipping 187 matching lines @@
                                     mediaSource:mediaSource
                                            text:params.link_text];
   [_UIDelegate webView:self
       runContextMenuWithTitle:params.menu_title
                forHTMLElement:HTMLElement
                        inView:params.view
           userGestureLocation:params.location];
   return YES;
 }
 
+- (web::WebState*)webState:(web::WebState*)webState
+    createNewWebStateForURL:(const GURL&)URL
+                  openerURL:(const GURL&)openerURL
+            initiatedByUser:(BOOL)initiatedByUser {
+  SEL selector =
+      @selector(webView:createWebViewWithConfiguration:forNavigationAction:);
+  if (![_UIDelegate respondsToSelector:selector]) {
+    return nullptr;
+  }
+
+  NSURLRequest* request =
+      [[NSURLRequest alloc] initWithURL:net::NSURLWithGURL(URL)];
+  CWVNavigationAction* navigationAction =
+      [[CWVNavigationAction alloc] initWithRequest:request
+                                     userInitiated:initiatedByUser];
+  // TODO(crbug.com/702298): Window created by CWVUIDelegate should be closable.
+  CWVWebView* webView = [_UIDelegate webView:self
+              createWebViewWithConfiguration:_configuration
+                         forNavigationAction:navigationAction];
+  if (!webView) {
+    return nullptr;
+  }
+  return webView->_webState.get();
+}
+
+- (void)closeWebState:(web::WebState*)webState {
+  SEL selector = @selector(webViewDidClose:);
+  if ([_UIDelegate respondsToSelector:selector]) {
+    [_UIDelegate webViewDidClose:self];
+  }
+}
+
 - (web::JavaScriptDialogPresenter*)javaScriptDialogPresenterForWebState:
     (web::WebState*)webState {
   return _javaScriptDialogPresenter.get();
 }
 
 @end