Send the TranslationRequest which collected from the UI toolkit to the TranslationService. And apply the result to the UI toolkit to show the translated text. Bug: 172969740 Bug: 177887860 Test: Verified by using a sample app and made sure the full flow work and the text was replaced with translated text. Change-Id: I1db4d1eabe5bc65d8785f13f760af54f74e46c97