Replace deprecated openURL API call (#164247)

This PR replace the deprecated `openURL:` API with equivalent
`openURL:options:completionHandler:` API.

*List which issues are fixed by this PR. You must list at least one
issue. An issue is not required if the PR fixes something trivial like a
typo.*
https://github.com/flutter/flutter/issues/164047

*If you had to change anything in the [flutter/tests] repo, include a
link to the migration guide as per the [breaking change policy].*

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- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
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- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
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Fixes] where supported.
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engine/src/flutter/shell/platform/darwin/ios/framework/Source/FlutterAppDelegate.mm

@@ -164,7 +164,9 @@ static NSString* const kRestorationStateAppModificationKey = @"mod-date";
                                  completionHandler:^(BOOL success) {
                                    if (!success && throwBack) {
                                      // throw it back to iOS
-                                     [UIApplication.sharedApplication openURL:url];
+                                     [UIApplication.sharedApplication openURL:url
+                                                                      options:@{}
+                                                            completionHandler:nil];
                                    }
                                  }];
   } else {

engine/src/flutter/shell/platform/darwin/ios/framework/Source/FlutterAppDelegateTest.mm

@@ -15,7 +15,7 @@ FLUTTER_ASSERT_ARC
 
 @interface FlutterAppDelegateTest : XCTestCase
 @property(strong) FlutterAppDelegate* appDelegate;
-
+@property(strong) FlutterViewController* viewController;
 @property(strong) id mockMainBundle;
 @property(strong) id mockNavigationChannel;
 
@@ -37,6 +37,8 @@ FLUTTER_ASSERT_ARC
   self.appDelegate = appDelegate;
 
   FlutterViewController* viewController = OCMClassMock([FlutterViewController class]);
+  self.viewController = viewController;
+
   FlutterMethodChannel* navigationChannel = OCMClassMock([FlutterMethodChannel class]);
   self.mockNavigationChannel = navigationChannel;
 
@@ -172,4 +174,28 @@ FLUTTER_ASSERT_ARC
   OCMVerifyAll(self.mockNavigationChannel);
 }
 
+- (void)testUseNonDeprecatedOpenURLAPI {
+  OCMStub([self.mockMainBundle objectForInfoDictionaryKey:@"FlutterDeepLinkingEnabled"])
+      .andReturn(@YES);
+  NSUserActivity* userActivity = [[NSUserActivity alloc] initWithActivityType:@"com.example.test"];
+  userActivity.webpageURL = [NSURL URLWithString:@"http://myApp/custom/route?query=nonexist"];
+  OCMStub([self.viewController sendDeepLinkToFramework:[OCMArg any] completionHandler:[OCMArg any]])
+      .andDo(^(NSInvocation* invocation) {
+        void (^handler)(BOOL success);
+        [invocation getArgument:&handler atIndex:3];
+        handler(NO);
+      });
+  id mockApplication = OCMClassMock([UIApplication class]);
+  OCMStub([mockApplication sharedApplication]).andReturn(mockApplication);
+  BOOL result = [self.appDelegate
+               application:[UIApplication sharedApplication]
+      continueUserActivity:userActivity
+        restorationHandler:^(NSArray<id<UIUserActivityRestoring>>* __nullable restorableObjects){
+        }];
+  XCTAssertTrue(result);
+  OCMVerify([mockApplication openURL:[OCMArg any]
+                             options:[OCMArg any]
+                   completionHandler:[OCMArg any]]);
+}
+
 @end