Implement "appinstalled" event on Android.

chrome/browser/android/banners/app_banner_infobar_delegate_android.cc

 // Copyright 2015 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 "chrome/browser/android/banners/app_banner_infobar_delegate_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/guid.h"
 #include "base/location.h"
@@ skipping 340 matching lines @@
   // Prevent the infobar from disappearing, because the infobar will show
   // "Adding" during the installation process.
   return false;
 }
 
 bool AppBannerInfoBarDelegateAndroid::TriggeredFromBanner() const {
   return !is_webapk_ || webapk_install_source_ == webapk::INSTALL_SOURCE_BANNER;
 }
 
 void AppBannerInfoBarDelegateAndroid::SendBannerAccepted() {
-  if (weak_manager_ && TriggeredFromBanner())
+  if (weak_manager_ && TriggeredFromBanner()) {
     weak_manager_->SendBannerAccepted(event_request_id_);

[dominickn, 2016/12/12 05:03:30]

You need if (!is_webapk_) to stop this triggering on WebAPKs.

[Matt Giuca, 2016/12/14 03:39:40]

Done.

+    weak_manager_->OnInstall();
+  }
 }
 
 void AppBannerInfoBarDelegateAndroid::OnWebApkInstallFinished(
     bool success,
     const std::string& webapk_package_name) {
   JNIEnv* env = base::android::AttachCurrentThread();
   if (!success) {
     DVLOG(1) << "The WebAPK installation failed.";
     Java_AppBannerInfoBarDelegateAndroid_showWebApkInstallFailureToast(env);
     webapk::TrackInstallEvent(webapk::INSTALL_FAILED);
@@ skipping 82 matching lines @@
 
   TrackDismissEvent(DISMISS_EVENT_BANNER_CLICK);
   return true;
 }
 
 bool RegisterAppBannerInfoBarDelegateAndroid(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace banners