Implement "appinstalled" event on Android.

third_party/WebKit/Source/modules/installation/InstallationServiceImpl.cpp

+// 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 "modules/installation/InstallationServiceImpl.h"
+
+#include "core/events/Event.h"
+#include "core/frame/LocalDOMWindow.h"

[haraken, 2016/12/15 07:27:50]

unused

[Matt Giuca, 2016/12/16 03:53:46]

m_frame->domWindow() is a LocalDOMWindow, so I need this.

(It just the other day got renamed from localDOMWindow to domWindow; not sure
why since its type is still LocalDOMWindow.)

+#include "core/frame/LocalFrame.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+#include "wtf/PtrUtil.h"
+#include <utility>

[haraken, 2016/12/15 07:27:50]

unused ?

[Matt Giuca, 2016/12/16 03:53:46]

std::move is in <utility>

+
+namespace blink {
+
+InstallationServiceImpl::InstallationServiceImpl(LocalFrame& frame)
+    : m_frame(frame) {}
+
+// static
+void InstallationServiceImpl::create(
+    LocalFrame* frame,
+    mojom::blink::InstallationServiceRequest request) {
+  mojo::MakeStrongBinding(WTF::makeUnique<InstallationServiceImpl>(*frame),
+                          std::move(request));
+}
+
+void InstallationServiceImpl::OnInstall() {
+  m_frame->domWindow()->dispatchEvent(

[haraken, 2016/12/15 07:27:50]

You need to check if (m_frame && m_frame->domWindow()).

[Matt Giuca, 2016/12/16 03:53:46]

Done.

+      Event::create(EventTypeNames::appinstalled));
+}
+
+}  // namespace blink