Remove deprecated APIs from OpenApplicationWithPath.

chrome/app_shim/chrome_main_app_mode_mac.mm

Index: chrome/app_shim/chrome_main_app_mode_mac.mm
diff --git a/chrome/app_shim/chrome_main_app_mode_mac.mm b/chrome/app_shim/chrome_main_app_mode_mac.mm
index ea203e5303d9d7257c86a202c90d0fd44f872830..2649d49e31a6f45ee52b5bf5ce5e3f7e93c268e6 100644
--- a/chrome/app_shim/chrome_main_app_mode_mac.mm
+++ b/chrome/app_shim/chrome_main_app_mode_mac.mm
@@ -480,11 +480,6 @@ void AppShimController::SendSetAppHidden(bool hidden) {
   base::Callback<void(bool)> onReply_;
   AEDesc replyEvent_;
 }
-// Sends an Apple Event to the process identified by |psn|, and calls |replyFn|
-// when the reply is received. Internally this creates a ReplyEventHandler,
-// which will delete itself once the reply event has been received.
-+ (void)pingProcess:(const ProcessSerialNumber&)psn
-            andCall:(base::Callback<void(bool)>)replyFn;
 @end
 
 @interface ReplyEventHandler (PrivateMethods)
@@ -493,9 +488,8 @@ void AppShimController::SendSetAppHidden(bool hidden) {
 // Apple Event reply arrives.
 - (id)initWithCallback:(base::Callback<void(bool)>)replyFn;
 
-// Sends an Apple Event ping to the process identified by |psn| and registers
-// to listen for a reply.
-- (void)pingProcess:(const ProcessSerialNumber&)psn;
+// Returns the apple event that should be sent to the process.
+- (NSAppleEventDescriptor*)appleEventToSendToProcess;
 
 // Called when a response is received from the target process for the ping sent
 // by |-pingProcess:|.
@@ -507,17 +501,6 @@ void AppShimController::SendSetAppHidden(bool hidden) {
 - (void)closeWithSuccess:(bool)success;
 @end
 
-@implementation ReplyEventHandler
-+ (void)pingProcess:(const ProcessSerialNumber&)psn
-            andCall:(base::Callback<void(bool)>)replyFn {
-  // The object will release itself when the reply arrives, or possibly earlier
-  // if an unrecoverable error occurs.
-  ReplyEventHandler* handler =
-      [[ReplyEventHandler alloc] initWithCallback:replyFn];
-  [handler pingProcess:psn];
-}
-@end
-
 @implementation ReplyEventHandler (PrivateMethods)
 - (id)initWithCallback:(base::Callback<void(bool)>)replyFn {
   if ((self = [super init])) {
@@ -526,35 +509,20 @@ void AppShimController::SendSetAppHidden(bool hidden) {
   return self;
 }
 
-- (void)pingProcess:(const ProcessSerialNumber&)psn {
+- (NSAppleEventDescriptor*)appleEventToSendToProcess {
   // Register the reply listener.
   NSAppleEventManager* em = [NSAppleEventManager sharedAppleEventManager];
   [em setEventHandler:self
           andSelector:@selector(message:withReply:)
         forEventClass:'aevt'
            andEventID:'ansr'];
-  // Craft the Apple Event to send.
-  NSAppleEventDescriptor* target = [NSAppleEventDescriptor
-      descriptorWithDescriptorType:typeProcessSerialNumber
-                             bytes:&psn
-                            length:sizeof(psn)];
-  NSAppleEventDescriptor* initial_event =
-      [NSAppleEventDescriptor
-          appleEventWithEventClass:app_mode::kAEChromeAppClass
-                           eventID:app_mode::kAEChromeAppPing
-                  targetDescriptor:target
-                          returnID:kAutoGenerateReturnID
-                     transactionID:kAnyTransactionID];
-
-  // Note that AESendMessage effectively ignores kAEDefaultTimeout, because this
-  // call does not pass kAEWantReceipt (which is deprecated and unsupported on
-  // Mac). Instead, rely on OnPingChromeTimeout().
-  OSStatus status = AESendMessage(
-      [initial_event aeDesc], &replyEvent_, kAEQueueReply, kAEDefaultTimeout);
-  if (status != noErr) {
-    OSSTATUS_LOG(ERROR, status) << "AESendMessage";
-    [self closeWithSuccess:false];
-  }
+  NSAppleEventDescriptor* initial_event = [NSAppleEventDescriptor
+      appleEventWithEventClass:app_mode::kAEChromeAppClass
+                       eventID:app_mode::kAEChromeAppPing
+              targetDescriptor:nil
+                      returnID:kAutoGenerateReturnID
+                 transactionID:kAnyTransactionID];
+  return initial_event;
 }
 
 - (void)message:(NSAppleEventDescriptor*)event
@@ -668,7 +636,6 @@ int ChromeAppModeStart_v4(const app_mode::ChromeAppModeInfo* info) {
       !base::CommandLine::ForCurrentProcess()->HasSwitch(
           app_mode::kLaunchedForTest)) {
     // Launch Chrome if it isn't already running.
-    ProcessSerialNumber psn;
     base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
     command_line.AppendSwitch(switches::kSilentLaunch);
 
@@ -681,24 +648,25 @@ int ChromeAppModeStart_v4(const app_mode::ChromeAppModeInfo* info) {
                                     info->profile_dir);
     }
 
-    bool success =
-        base::mac::OpenApplicationWithPath(base::mac::OuterBundlePath(),
-                                           command_line,
-                                           kLSLaunchDefaults,
-                                           &psn);
-    if (!success)
-      return 1;
+    base::Callback<void(bool)> on_ping_chrome_reply = base::Bind(
+        &AppShimController::OnPingChromeReply, base::Unretained(&controller));
 
-    base::Callback<void(bool)> on_ping_chrome_reply =
-        base::Bind(&AppShimController::OnPingChromeReply,
-                   base::Unretained(&controller));
+    // Self-owned object that will delete itself.
+    ReplyEventHandler* handler =
+        [[ReplyEventHandler alloc] initWithCallback:on_ping_chrome_reply];
+    NSAppleEventDescriptor* descriptor = [handler appleEventToSendToProcess];
+
+    bool success = base::mac::OpenApplicationWithPath(
+        base::mac::OuterBundlePath(), command_line, NSWorkspaceLaunchDefault,
+        descriptor, nullptr);
+    if (!success) {
+      [handler closeWithSuccess:false];
+      return 1;
+    }
 
     // This code abuses the fact that Apple Events sent before the process is
     // fully initialized don't receive a reply until its run loop starts. Once
     // the reply is received, Chrome will have opened its IPC port, guaranteed.
-    [ReplyEventHandler pingProcess:psn
-                           andCall:on_ping_chrome_reply];
-
     main_message_loop.task_runner()->PostDelayedTask(
         FROM_HERE, base::Bind(&AppShimController::OnPingChromeTimeout,
                               base::Unretained(&controller)),