Fall back to shortcut A2HS when Phonesky is out of date or unavailable.

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

Index: chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkInstaller.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkInstaller.java b/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkInstaller.java
index a32ff99e8f255816a1676f2fa5ecd27c53973032..4b188461987ac0f3f6c1007e04346aa23ac3a3ae 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkInstaller.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkInstaller.java
@@ -20,8 +20,6 @@ import org.chromium.base.annotations.CalledByNative;
 import org.chromium.chrome.browser.ChromeApplication;
 import org.chromium.chrome.browser.ShortcutHelper;
 import org.chromium.chrome.browser.banners.InstallerDelegate;
-import org.chromium.chrome.browser.externalauth.ExternalAuthUtils;
-import org.chromium.chrome.browser.externalauth.UserRecoverableErrorHandler;
 import org.chromium.chrome.browser.util.IntentUtils;
 
 import java.io.File;
@@ -66,9 +64,7 @@ public class WebApkInstaller {
     @CalledByNative
     private boolean canUseGooglePlayInstallService() {
         return mGooglePlayWebApkInstallDelegate != null

[pkotwicz, 2017/02/05 02:13:54]

Can the null check be removed?

[Xi Han, 2017/02/06 18:03:43]

Done.

-                && ExternalAuthUtils.getInstance().canUseGooglePlayServices(
-                        ContextUtils.getApplicationContext(),
-                        new UserRecoverableErrorHandler.Silent());
+                && ChromeWebApkHost.canUseGooglePlayToInstallWebApk();
     }
 
     @CalledByNative
@@ -118,20 +114,27 @@ public class WebApkInstaller {
     @CalledByNative
     private boolean installWebApkFromGooglePlayAsync(String packageName, int version, String title,
             String token, String url) {
-        if (mGooglePlayWebApkInstallDelegate == null) return false;
+        if (mGooglePlayWebApkInstallDelegate == null) {
+            notify(false);
+            return false;
+        }
 
         Callback<Boolean> callback = new Callback<Boolean>() {
             @Override
             public void onResult(Boolean success) {
-                if (mNativePointer != 0) {
-                    nativeOnInstallFinished(mNativePointer, success);
-                }
+                WebApkInstaller.this.notify(success);
             }
         };
         return mGooglePlayWebApkInstallDelegate.installAsync(packageName, version, title, token,
                 url, callback);
     }
 
+    private void notify(boolean success) {
+        if (mNativePointer != 0) {
+            nativeOnInstallFinished(mNativePointer, success);
+        }
+    }
+
     /**
      * Updates a WebAPK.
      * @param filePath File to update.