[TTS] Add an ACK message to SelectWordAroundCaret.

content/browser/android/content_view_core_impl.cc

Index: content/browser/android/content_view_core_impl.cc
diff --git a/content/browser/android/content_view_core_impl.cc b/content/browser/android/content_view_core_impl.cc
index f79636db8f4ea8c4b370091484c3ce0fa47be532..9f4ab4f719f0b3b330efe07aaad3c7c791872d7c 100644
--- a/content/browser/android/content_view_core_impl.cc
+++ b/content/browser/android/content_view_core_impl.cc
@@ -1220,6 +1220,17 @@ void ContentViewCoreImpl::OnShowUnhandledTapUIIfNeeded(int x_dip, int y_dip) {
       static_cast<jint>(y_dip * dpi_scale()));
 }
 
+void ContentViewCoreImpl::OnSelectWordAroundCaretAck(bool did_select,
+                                                     int start_adjust,
+                                                     int end_adjust) {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
+  if (obj.is_null())
+    return;
+  Java_ContentViewCore_onSelectWordAroundCaretAck(env, obj, did_select,
+                                                  start_adjust, end_adjust);
+}
+
 void ContentViewCoreImpl::HidePopupsAndPreserveSelection() {
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);