Move didFocus from WebWidgetClient to WebViewClient.

components/test_runner/web_widget_test_client.cc

Index: components/test_runner/web_widget_test_client.cc
diff --git a/components/test_runner/web_widget_test_client.cc b/components/test_runner/web_widget_test_client.cc
index 76291d181a70d37c924185be01ad97f4c501d19f..e40cf2652986550ecc89239e242467e6c5db6a86 100644
--- a/components/test_runner/web_widget_test_client.cc
+++ b/components/test_runner/web_widget_test_client.cc
@@ -93,10 +93,6 @@ bool WebWidgetTestClient::isPointerLocked() {
   return web_test_proxy_base_->view_test_runner()->isPointerLocked();
 }
 
-void WebWidgetTestClient::didFocus() {
-  test_runner_->SetFocus(web_test_proxy_base_->web_view(), true);
-}
-
 void WebWidgetTestClient::setToolTipText(const blink::WebString& text,
                                          blink::WebTextDirection direction) {
   test_runner_->setToolTipText(text);