Fix classes that have too many virtuals for inline constructors.

components/test_runner/mock_web_speech_recognizer.cc

Index: components/test_runner/mock_web_speech_recognizer.cc
diff --git a/components/test_runner/mock_web_speech_recognizer.cc b/components/test_runner/mock_web_speech_recognizer.cc
index 17b430d4907191dcc6d28b407ab9007e8e3c44f7..4447921ccdc22289d6748f77b329fb96eb3325cf 100644
--- a/components/test_runner/mock_web_speech_recognizer.cc
+++ b/components/test_runner/mock_web_speech_recognizer.cc
@@ -231,6 +231,9 @@ void MockWebSpeechRecognizer::ClearTaskQueue() {
   task_queue_running_ = false;
 }
 
+MockWebSpeechRecognizer::StepTask::StepTask(MockWebSpeechRecognizer* object)
+    : WebMethodTask<MockWebSpeechRecognizer>(object) {}
+
 void MockWebSpeechRecognizer::StepTask::RunIfValid() {
   if (object_->task_queue_.empty()) {
     object_->task_queue_running_ = false;