Making EventSender talk to the right WebWidget (for OOPIF support).

components/test_runner/web_widget_test_proxy.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/test_runner/web_widget_test_proxy.h"
 
+#include "components/test_runner/event_sender.h"
+
 namespace test_runner {
 
-WebWidgetTestProxyBase::WebWidgetTestProxyBase() : web_widget_(nullptr) {}
+WebWidgetTestProxyBase::WebWidgetTestProxyBase()
+    : web_widget_(nullptr),
+      web_view_test_proxy_base_(nullptr),
+      event_sender_(new EventSender(this)) {}
 
 WebWidgetTestProxyBase::~WebWidgetTestProxyBase() {}
 
+WebWidgetTestProxyBase::Subtype WebWidgetTestProxyBase::subtype() {
+  return Subtype::WebWidgetTestProxy;
+}
+
+void WebWidgetTestProxyBase::Reset() {
+  event_sender_->Reset();
+}
+
+void WebWidgetTestProxyBase::BindTo(blink::WebLocalFrame* frame) {
+  event_sender_->Install(frame);
+}
+
 }  // namespace test_runner