Determine whether to show "Add to Homescreen" dialog or WebAPK infobar

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

Index: chrome/android/java/src/org/chromium/chrome/browser/webapps/AddToHomescreenDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkActivity1.java b/chrome/android/java/src/org/chromium/chrome/browser/webapps/AddToHomescreenDelegate.java
similarity index 34%
copy from chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkActivity1.java
copy to chrome/android/java/src/org/chromium/chrome/browser/webapps/AddToHomescreenDelegate.java
index 28043a22bba3d3206ca873d183c31d18e6e9edbb..50786ea7acc71c22f30b12cd1521ba6f9e8ac8dd 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkActivity1.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/webapps/AddToHomescreenDelegate.java
@@ -5,7 +5,17 @@
 package org.chromium.chrome.browser.webapps;
 
 /**
- * Instance of WebApkActivity. Existence explained in WebApkManagedActivity.
+ * Business logic API for Add-to-Homescreen UI.
  */
-public class WebApkActivity1 extends WebApkManagedActivity {
+public interface AddToHomescreenDelegate {
+    /**
+     * Adds a homescreen shortcut for the current tab.
+     * @param userRequestedTitle User-specified title for the shortcut.
+     */
+    void addShortcut(String userRequestedTitle);
+
+    /**
+     * Should be called when the UI for adding a shortcut to the homescreen is dismissed.
+     */
+    void onDismissed();
 }