Explicitly reset the speech state when closing the app launcher.

chrome/browser/ui/app_list/start_page_service.cc

Index: chrome/browser/ui/app_list/start_page_service.cc
diff --git a/chrome/browser/ui/app_list/start_page_service.cc b/chrome/browser/ui/app_list/start_page_service.cc
index c65a3e03a34990a4c1c607e69e34715d0100894b..6f78bfa3c527fd17edd07d3cb8853bf83ce848f4 100644
--- a/chrome/browser/ui/app_list/start_page_service.cc
+++ b/chrome/browser/ui/app_list/start_page_service.cc
@@ -341,6 +341,12 @@ void StartPageService::AppListHidden() {
       speech_recognizer_) {
     speech_recognizer_->Stop();
     speech_recognizer_.reset();
+
+    // When the SpeechRecognizer is destroyed above, we get stuck in the current
+    // speech state instead of being reset into the READY state. Reset the
+    // speech state explicitly so that speech works when the launcher is opened
+    // again.
+    OnSpeechRecognitionStateChanged(SPEECH_RECOGNITION_READY);
   }
 
 #if defined(OS_CHROMEOS)