Implement privacy disclosure for an unbound webapk.

chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkActivity.java

Index: chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkActivity.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkActivity.java
index a6d3108cc311843903e59a0f2887723294d224d5..635d973ddbb22e78f2a9429ef90fe8f93551addf 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkActivity.java
@@ -4,6 +4,8 @@
 
 package org.chromium.chrome.browser.webapps;
 
+import static org.chromium.webapk.lib.common.WebApkConstants.WEBAPK_PACKAGE_PREFIX;
+
 import android.content.Intent;
 import android.os.Bundle;
 import android.os.SystemClock;
@@ -41,6 +43,9 @@ public class WebApkActivity extends WebappActivity {
     /** The start time that the activity becomes focused. */
     private long mStartTime;
 
+    /** The id tag for the disclosure notification, if one is presented. */
+    private int mNotificationId = 0;
+
     @Override
     protected WebappInfo createWebappInfo(Intent intent) {
         return (intent == null) ? WebApkInfo.createEmpty() : WebApkInfo.create(intent);
@@ -102,8 +107,23 @@ public class WebApkActivity extends WebappActivity {
     }
 
     @Override
+    public void onStartWithNative() {
+        super.onStartWithNative();
+        // If WebappStorage is available, check whether to show a disclosure notification. If it's
+        // not available, this check will happen once deferred startup returns with the storage
+        // instance.
+        WebappDataStorage storage =
+                WebappRegistry.getInstance().getWebappDataStorage(mWebappInfo.id());
+        if (storage != null) maybeShowDisclosure(storage);
+    }
+
+    @Override
     public void onStopWithNative() {
         super.onStopWithNative();
+        if (mNotificationId != 0) {
+            WebApkDisclosureNotificationManager.dismissNotification(mWebappInfo, mNotificationId);
+            mNotificationId = 0;
+        }
         if (mUpdateManager != null && mUpdateManager.requestPendingUpdate()) {
             WebApkUma.recordUpdateRequestSent(WebApkUma.UPDATE_REQUEST_SENT_ONSTOP);
         }
@@ -150,6 +170,19 @@ public class WebApkActivity extends WebappActivity {
 
         mUpdateManager = new WebApkUpdateManager(WebApkActivity.this, storage);
         mUpdateManager.updateIfNeeded(getActivityTab(), info);
+
+        maybeShowDisclosure(storage);
+    }
+
+    /**
+     * If we're showing a WebApk that's not with an expected package, it must be an
+     * "Unbound WebApk" (crbug.com/714735) so show a notification that it's running in Chrome.
+     */
+    private void maybeShowDisclosure(WebappDataStorage storage) {
+        if (!getWebApkPackageName().startsWith(WEBAPK_PACKAGE_PREFIX)
+                && !storage.hasDismissedDisclosure() && mNotificationId == 0) {
+            mNotificationId = WebApkDisclosureNotificationManager.showDisclosure(mWebappInfo);
+        }
     }
 
     @Override