Move more dart:developer usage under if (!kReleaseMode) {} guard

This mirrors changes done e.g. in [0] which did the same changes to e.g.
`BindingBase` class.

[0] flutter/flutter@07772a3

Issue WebKit/JetStream#95

Change-Id: I239e1e0a2206164c55050c4f21c74367d9817574
Reviewed-on: https://dart-review.googlesource.com/c/flute/+/442880
Commit-Queue: Martin Kustermann <[email protected]>
Reviewed-by: Alexander Thomas <[email protected]>

Author: mkustermann

framework/lib/src/foundation/binding.dart

@@ -140,7 +140,9 @@ abstract class BindingBase {
   /// [initServiceExtensions] to have bindings initialize their
   /// VM service extensions, if any.
   BindingBase() {
-    developer.Timeline.startSync('Framework initialization');
+    if (!kReleaseMode) {
+      developer.Timeline.startSync('Framework initialization');
+    }
     assert(() {
       _debugConstructed = true;
       return true;
@@ -154,9 +156,10 @@ abstract class BindingBase {
     initServiceExtensions();
     assert(_debugServiceExtensionsRegistered);
 
-    developer.postEvent('Flutter.FrameworkInitialization', <String, String>{});
-
-    developer.Timeline.finishSync();
+    if (!kReleaseMode) {
+      developer.postEvent('Flutter.FrameworkInitialization', <String, String>{});
+      developer.Timeline.finishSync();
+    }
   }
 
   bool _debugConstructed = false;
@@ -550,14 +553,19 @@ abstract class BindingBase {
   /// The [Future] returned by the `callback` argument is returned by [lockEvents].
   @protected
   Future<void> lockEvents(Future<void> Function() callback) {
-    final developer.TimelineTask timelineTask = developer.TimelineTask()..start('Lock events');
+    developer.TimelineTask? timelineTask;
+    if (!kReleaseMode) {
+      timelineTask = developer.TimelineTask()..start('Lock events');
+    }
 
     _lockCount += 1;
     final Future<void> future = callback();
     future.whenComplete(() {
       _lockCount -= 1;
       if (!locked) {
-        timelineTask.finish();
+        if (!kReleaseMode) {
+          timelineTask!.finish();
+        }
         unlocked();
       }
     });