Format all kotlin according to ktlint (#143390)

Entire pr generated with [ktlint](https://github.com/pinterest/ktlint) --format. First step before enabling linting as part of presubmit for kotlin changes.

dev/a11y_assessments/android/app/src/main/kotlin/com/example/a11y_assessments/MainActivity.kt

@@ -2,5 +2,4 @@ package com.example.a11y_assessments
 
 import io.flutter.embedding.android.FlutterActivity
 
-class MainActivity: FlutterActivity() {
-}
+class MainActivity : FlutterActivity()

dev/benchmarks/multiple_flutters/android/app/src/main/java/dev/flutter/multipleflutters/MainActivity.kt

@@ -4,18 +4,13 @@
 
 package dev.flutter.multipleflutters
 
-import android.content.Intent
-import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
-import android.view.View
 import android.widget.FrameLayout
 import android.widget.LinearLayout
-import android.widget.TextView
 import androidx.fragment.app.FragmentActivity
 import androidx.fragment.app.FragmentManager
 import io.flutter.FlutterInjector
 import io.flutter.embedding.android.FlutterFragment
-import io.flutter.embedding.engine.FlutterEngine
 import io.flutter.embedding.engine.FlutterEngineCache
 import io.flutter.embedding.engine.dart.DartExecutor
 
@@ -25,9 +20,10 @@ class MainActivity : FragmentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         val root = LinearLayout(this)
-        root.layoutParams = LinearLayout.LayoutParams(
+        root.layoutParams =
+            LinearLayout.LayoutParams(
+                LinearLayout.LayoutParams.MATCH_PARENT,
                 LinearLayout.LayoutParams.MATCH_PARENT,
-            LinearLayout.LayoutParams.MATCH_PARENT
             )
         root.orientation = LinearLayout.VERTICAL
         root.weightSum = numberOfFlutters.toFloat()
@@ -39,9 +35,11 @@ class MainActivity : FragmentActivity() {
         val app = applicationContext as App
         val dartEntrypoint =
             DartExecutor.DartEntrypoint(
-                FlutterInjector.instance().flutterLoader().findAppBundlePath(), "main"
+                FlutterInjector.instance().flutterLoader().findAppBundlePath(),
+                "main",
             )
-        val engines = generateSequence(0)  { it + 1 }
+        val engines =
+            generateSequence(0) { it + 1 }
                 .take(numberOfFlutters)
                 .map { app.engines.createAndRunEngine(this, dartEntrypoint) }
                 .toList()
@@ -49,10 +47,11 @@ class MainActivity : FragmentActivity() {
             val flutterContainer = FrameLayout(this)
             root.addView(flutterContainer)
             flutterContainer.id = 12345 + i
-            flutterContainer.layoutParams = LinearLayout.LayoutParams(
+            flutterContainer.layoutParams =
+                LinearLayout.LayoutParams(
                     FrameLayout.LayoutParams.MATCH_PARENT,
                     FrameLayout.LayoutParams.MATCH_PARENT,
-                1.0f
+                    1.0f,
                 )
             val engine = engines[i]
             FlutterEngineCache.getInstance().put(i.toString(), engine)
@@ -62,7 +61,7 @@ class MainActivity : FragmentActivity() {
                 .beginTransaction()
                 .add(
                     12345 + i,
-                    flutterFragment
+                    flutterFragment,
                 )
                 .commit()
         }

dev/benchmarks/platform_channels_benchmarks/android/app/src/main/kotlin/com/example/platform_channels_benchmarks/MainActivity.kt

@@ -11,28 +11,40 @@ import io.flutter.plugin.common.BinaryCodec
 import io.flutter.plugin.common.StandardMessageCodec
 import java.nio.ByteBuffer
 
-class MainActivity: FlutterActivity() {
+class MainActivity : FlutterActivity() {
     // We allow for the caching of a response in the binary channel case since
     // the reply requires a direct buffer, but the input is not a direct buffer.
     // We can't directly send the input back to the reply currently.
-    private var byteBufferCache : ByteBuffer? = null
+    private var byteBufferCache: ByteBuffer? = null
+
     override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
         val reset = BasicMessageChannel(flutterEngine.dartExecutor, "dev.flutter.echo.reset", StandardMessageCodec.INSTANCE)
-        reset.setMessageHandler { message, reply -> run {
+        reset.setMessageHandler { message, reply ->
+            run {
                 byteBufferCache = null
-        } }
-        val basicStandard = BasicMessageChannel(flutterEngine.dartExecutor, "dev.flutter.echo.basic.standard", StandardMessageCodec.INSTANCE)
+            }
+        }
+        val basicStandard =
+            BasicMessageChannel(flutterEngine.dartExecutor, "dev.flutter.echo.basic.standard", StandardMessageCodec.INSTANCE)
         basicStandard.setMessageHandler { message, reply -> reply.reply(message) }
         val basicBinary = BasicMessageChannel(flutterEngine.dartExecutor, "dev.flutter.echo.basic.binary", BinaryCodec.INSTANCE_DIRECT)
-        basicBinary.setMessageHandler { message, reply -> run {
+        basicBinary.setMessageHandler { message, reply ->
+            run {
                 if (byteBufferCache == null) {
                     byteBufferCache = ByteBuffer.allocateDirect(message!!.capacity())
                     byteBufferCache!!.put(message)
                 }
                 reply.reply(byteBufferCache)
-        } }
-        val taskQueue = flutterEngine.dartExecutor.getBinaryMessenger().makeBackgroundTaskQueue();
-        val backgroundStandard = BasicMessageChannel(flutterEngine.dartExecutor, "dev.flutter.echo.background.standard", StandardMessageCodec.INSTANCE, taskQueue)
+            }
+        }
+        val taskQueue = flutterEngine.dartExecutor.getBinaryMessenger().makeBackgroundTaskQueue()
+        val backgroundStandard =
+            BasicMessageChannel(
+                flutterEngine.dartExecutor,
+                "dev.flutter.echo.background.standard",
+                StandardMessageCodec.INSTANCE,
+                taskQueue,
+            )
         backgroundStandard.setMessageHandler { message, reply -> reply.reply(message) }
         super.configureFlutterEngine(flutterEngine)
     }

dev/integration_tests/abstract_method_smoke_test/android/app/src/main/kotlin/com/example/abstract_method_smoke_test/MainActivity.kt

@@ -2,7 +2,6 @@ package com.example.abstract_method_smoke_test
 
 import android.content.Context
 import android.graphics.Color
-import android.os.Bundle
 import android.view.View
 import android.view.inputmethod.InputMethodManager
 import androidx.annotation.NonNull
@@ -30,17 +29,26 @@ class MainActivity : FlutterActivity() {
         }
     }
 
-    override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
-        GeneratedPluginRegistrant.registerWith(flutterEngine);
+    override fun configureFlutterEngine(
+        @NonNull flutterEngine: FlutterEngine,
+    ) {
+        GeneratedPluginRegistrant.registerWith(flutterEngine)
 
-        val shimPluginRegistry = ShimPluginRegistry(flutterEngine);
+        val shimPluginRegistry = ShimPluginRegistry(flutterEngine)
         shimPluginRegistry.registrarFor("com.example.abstract_method_smoke_test")
             .platformViewRegistry()
-                .registerViewFactory("simple", object : PlatformViewFactory(StandardMessageCodec.INSTANCE) {
-                    override fun create(context: Context?, viewId: Int, args: Any?): PlatformView {
+            .registerViewFactory(
+                "simple",
+                object : PlatformViewFactory(StandardMessageCodec.INSTANCE) {
+                    override fun create(
+                        context: Context?,
+                        viewId: Int,
+                        args: Any?,
+                    ): PlatformView {
                         return SimplePlatformView(this@MainActivity)
                     }
-                })
+                },
+            )
 
         // Triggers the Android keyboard, which causes the resize of the Flutter view.
         // We need to wait for the app to complete.

dev/integration_tests/android_embedding_v2_smoke_test/android/app/src/main/kotlin/com/example/android_embedding_v2_smoke_test/MainActivity.kt

 package com.example.android_embedding_v2_smoke_test
 
-import androidx.annotation.NonNull;
+import androidx.annotation.NonNull
 import io.flutter.embedding.android.FlutterActivity
 import io.flutter.embedding.engine.FlutterEngine
 import io.flutter.plugins.GeneratedPluginRegistrant
 
-class MainActivity: FlutterActivity() {
-    override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
-        GeneratedPluginRegistrant.registerWith(flutterEngine);
+class MainActivity : FlutterActivity() {
+    override fun configureFlutterEngine(
+        @NonNull flutterEngine: FlutterEngine,
+    ) {
+        GeneratedPluginRegistrant.registerWith(flutterEngine)
     }
 }

dev/integration_tests/deferred_components_test/android/app/src/main/kotlin/io/flutter/integration/deferred_components_test/MainActivity.kt

@@ -2,5 +2,4 @@ package io.flutter.integration.deferred_components_test
 
 import io.flutter.embedding.android.FlutterActivity
 
-class MainActivity: FlutterActivity() {
-}
+class MainActivity : FlutterActivity()

dev/integration_tests/non_nullable/android/app/src/main/kotlin/com/example/non_nullable/MainActivity.kt

@@ -2,5 +2,4 @@ package com.example.non_nullable
 
 import io.flutter.embedding.android.FlutterActivity
 
-class MainActivity: FlutterActivity() {
-}
+class MainActivity : FlutterActivity()

dev/integration_tests/spell_check/android/app/src/main/kotlin/com/example/sc_int_test/MainActivity.kt

@@ -2,5 +2,4 @@ package com.example.spell_check
 
 import io.flutter.embedding.android.FlutterActivity
 
-class MainActivity: FlutterActivity() {
-}
+class MainActivity : FlutterActivity()

dev/manual_tests/android/app/src/main/kotlin/dev/flutter/manual_tests/MainActivity.kt

@@ -2,5 +2,4 @@ package dev.flutter.manual_tests
 
 import io.flutter.embedding.android.FlutterActivity
 
-class MainActivity: FlutterActivity() {
-}
+class MainActivity : FlutterActivity()

dev/tracing_tests/android/app/src/main/kotlin/com/example/tracing_tests/MainActivity.kt

@@ -2,5 +2,4 @@ package com.example.tracing_tests
 
 import io.flutter.embedding.android.FlutterActivity
 
-class MainActivity: FlutterActivity() {
-}
+class MainActivity : FlutterActivity()

examples/api/android/app/src/main/kotlin/dev/flutter/flutter_api_samples/MainActivity.kt

@@ -2,5 +2,4 @@ package dev.flutter.flutter_api_samples
 
 import io.flutter.embedding.android.FlutterActivity
 
-class MainActivity: FlutterActivity() {
-}
+class MainActivity : FlutterActivity()

examples/hello_world/android/settings.gradle.kts

@@ -7,7 +7,8 @@
 // See #141540.
 
 pluginManagement {
-    val flutterSdkPath = run {
+    val flutterSdkPath =
+        run {
             val properties = java.util.Properties()
             file("local.properties").inputStream().use { properties.load(it) }
             val flutterSdkPath = properties.getProperty("flutter.sdk")

packages/flutter_tools/gradle/build.gradle.kts

@@ -7,7 +7,6 @@ plugins {
     `groovy`
 }
 
-
 group = "dev.flutter.plugin"
 version = "1.0.0"