Implement "appinstalled" event on Android.

chrome/browser/banners/app_banner_manager.cc

Index: chrome/browser/banners/app_banner_manager.cc
diff --git a/chrome/browser/banners/app_banner_manager.cc b/chrome/browser/banners/app_banner_manager.cc
index d9f4521a90fe18e816f9707c282c539715f49e64..375b8bac45dcd031825c7a55f884ba28b3edd51c 100644
--- a/chrome/browser/banners/app_banner_manager.cc
+++ b/chrome/browser/banners/app_banner_manager.cc
@@ -23,6 +23,7 @@
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/origin_util.h"
+#include "mojo/public/cpp/bindings/interface_request.h"
 #include "services/service_manager/public/cpp/interface_provider.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/display/display.h"
@@ -130,6 +131,14 @@ void AppBannerManager::RequestAppBanner(const GURL& validated_url,
       base::Bind(&AppBannerManager::OnDidGetManifest, GetWeakPtr()));
 }
 
+void AppBannerManager::OnInstall() {
+  blink::mojom::InstallationServicePtr installation_service;
+  web_contents()->GetMainFrame()->GetRemoteInterfaces()->GetInterface(
+      mojo::GetProxy(&installation_service));
+  DCHECK(installation_service);
+  installation_service->OnInstall();
+}
+
 void AppBannerManager::SendBannerAccepted(int request_id) {
   if (request_id != gCurrentRequestID)
     return;