Fix docs

Author: GaryQian

shell/platform/android/io/flutter/plugin/editing/TextInputPlugin.java

@@ -177,16 +177,17 @@ public void sendAppPrivateCommand(String action, Bundle data) {
   //
   // The WindowInsetsAnimation.Callback extension forwards the new state of the
   // IME inset from onProgress() to the framework. We also make use of the
-  // onPrepare and onStart callbacks to detect which calls to onApplyWindowInsets
-  // would interrupt the animation and defer it.
+  // onStart callback to detect which calls to onApplyWindowInsets would
+  // interrupt the animation and defer it.
   //
   // By implementing OnApplyWindowInsetsListener, we are able to capture Android's
-  // attempts to call the FlutterView's onApplyWindowInsets. When a call to onPrepare
-  // and subsequently onStart occurs, we can mark any non-animation calls to
-  // onApplyWindowInsets() that occurs between prepare and start as deferred by
-  // using this class' custom implementation to cache the WindowInsets passed in.
-  // When onEnd indicates the end of the animation, the deferred call is dispatched
-  // again, this time avoiding any flicker since the animation is now complete.
+  // attempts to call the FlutterView's onApplyWindowInsets. When a call to onStart
+  // occurs, we can mark any non-animation calls to onApplyWindowInsets() that
+  // occurs between prepare and start as deferred by using this class' wrapper
+  // implementation to cache the WindowInsets passed in and turn the current call into
+  // a no-op. When onEnd indicates the end of the animation, the deferred call is
+  // dispatched again, this time avoiding any flicker since the animation is now
+  // complete.
   @VisibleForTesting
   @TargetApi(30)
   @RequiresApi(30)
@@ -259,8 +260,8 @@ public WindowInsets onProgress(
       // The IME insets passed in by onProgress assumes that the entire animation
       // occurs above any present navigation and status bars. This causes the
       // IME inset to be too large for the animation. To remedy this, we merge the
-      // IME inset with other insets present via a subtract, which causes the IME
-      // inset to be overlaid with any bars present.
+      // IME inset with other insets present via a subtract + reLu, which causes the
+      // IME inset to be overlaid with any bars present.
       Insets newImeInsets =
           Insets.of(
               0,