Chrome talks to Play to install WebAPKs.

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 2b3a2c9fb66f47a8b1437241f5ee51515d29292a..5121141e5f4ae922c55ddaae776771b8d56f0ea4 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
@@ -4,11 +4,13 @@
 
 package org.chromium.chrome.browser.webapps;
 
+import android.app.PendingIntent;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.net.Uri;
 import android.os.Build;
+import android.os.Bundle;
 import android.os.Looper;
 
 import org.chromium.base.ApplicationState;
@@ -18,6 +20,7 @@ import org.chromium.base.ContextUtils;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.chrome.browser.ShortcutHelper;
 import org.chromium.chrome.browser.banners.InstallerDelegate;
+import org.chromium.chrome.browser.document.ChromeLauncherActivity;
 import org.chromium.chrome.browser.util.IntentUtils;
 
 import java.io.File;
@@ -42,6 +45,9 @@ public class WebApkInstaller {
     /** Indicates whether to install or update a WebAPK. */
     private boolean mIsInstall;
 
+    /** Talks to Play Store to install WebAPKs. **/
+    private static WebApkInstallClientDelegate sWebApkInstallClientDelegate;
+
     /** Weak pointer to the native WebApkInstaller. */
     private long mNativePointer;
 
@@ -49,6 +55,14 @@ public class WebApkInstaller {
         mNativePointer = nativePtr;
     }
 
+    /** Sets the WebApkInstallClientDelegate. **/
+    public static void setWebApkInstallClientDelegate(WebApkInstallClientDelegate delegate) {
+        if (sWebApkInstallClientDelegate != null) {
+            sWebApkInstallClientDelegate.reset();
+        }
+        sWebApkInstallClientDelegate = delegate;
+    }
+
     @CalledByNative
     private static WebApkInstaller create(long nativePtr) {
         return new WebApkInstaller(nativePtr);
@@ -74,10 +88,7 @@ public class WebApkInstaller {
         mWebApkPackageName = packageName;
 
         // Start monitoring the installation.
-        PackageManager packageManager = ContextUtils.getApplicationContext().getPackageManager();
-        mInstallTask = new InstallerDelegate(Looper.getMainLooper(), packageManager,
-                createInstallerDelegateObserver(), mWebApkPackageName);
-        mInstallTask.start();
+        setupInstallProcessMonitering();
         // Start monitoring the application state changes.
         mListener = createApplicationStateListener();
         ApplicationStatus.registerApplicationStateListener(mListener);
@@ -86,6 +97,54 @@ public class WebApkInstaller {
     }
 
     /**
+     * Install a WebAPK from Play Store and monitors the installation.
+     * @param packageName The package name of the WebAPK to install.
+     * @param version The version of WebAPK to install.
+     * @param title The title of the WebAPK to display during installation.
+     * @param token The token from WebAPK Minter Server
+     */
+    @CalledByNative
+    private void installWebApkFromPlayStoreAsyncAndMonitorInstallation(
+            final String packageName, final int version, final String title, final String token) {
+        if (sWebApkInstallClientDelegate == null) return;
+
+        mWebApkPackageName = packageName;
+        setupInstallProcessMonitering();
+        sWebApkInstallClientDelegate.installAsync(packageName, createInstallOptions(
+                version, title, createNotificationPendingIntent(), token));
+    }
+
+    /** Start monitoring the installation. **/
+    private void setupInstallProcessMonitering() {
+        PackageManager packageManager = ContextUtils.getApplicationContext().getPackageManager();
+        mInstallTask = new InstallerDelegate(Looper.getMainLooper(), packageManager,
+                createInstallerDelegateObserver(), mWebApkPackageName);
+        mInstallTask.start();
+    }
+
+    /** Returns a bundle with all the installation options. **/
+    private Bundle createInstallOptions(int version, String title, PendingIntent notificationIntent,
+            String token) {
+        Bundle installOptions = new Bundle();
+        installOptions.putInt("version_number", version);
+        installOptions.putString("title", title);
+        installOptions.putParcelable("notification_intent", notificationIntent);
+        installOptions.putString("wam_token", token);
+        return installOptions;
+    }
+
+    /**
+     * Creates a PendingIntent used to redirect users if notifications are clicked during the
+     * installation.
+     */
+    private PendingIntent createNotificationPendingIntent() {
+        Context context = ContextUtils.getApplicationContext();
+        Intent intent = new Intent(context, ChromeLauncherActivity.class);
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        return PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
+    }
+
+    /**
      * Send intent to Android to show prompt and install downloaded WebAPK.
      * @param filePath File to install.
      */