Download web payment manifests.

chrome/android/java/src/org/chromium/chrome/browser/payments/PackageManagerDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/payments/PackageManagerDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/payments/PackageManagerDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/payments/PackageManagerDelegate.java
new file mode 100644
index 0000000000000000000000000000000000000000..8afbbc2a609d5c5c4d9969f9db224309056a953f
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/payments/PackageManagerDelegate.java
@@ -0,0 +1,99 @@
+// Copyright 2017 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.
+
+package org.chromium.chrome.browser.payments;
+
+import android.content.Intent;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.pm.ResolveInfo;
+import android.graphics.drawable.Drawable;
+import android.os.StrictMode;
+import android.os.StrictMode.ThreadPolicy;
+
+import org.chromium.base.ContextUtils;
+
+import java.util.List;
+
+/** Abstraction of Android's package manager to enable unit testing. */
+public class PackageManagerDelegate {
+    /**
+     * Retrieves package information of an installed application.
+     *
+     * @param packageName The package name of an installed application.
+     * @return The package information of the installed application.
+     */
+    public PackageInfo getPackageInfoWithSignatures(String packageName) {
+        try {
+            return ContextUtils.getApplicationContext().getPackageManager().getPackageInfo(
+                    packageName, PackageManager.GET_SIGNATURES);
+        } catch (NameNotFoundException e) {
+            return null;
+        }
+    }
+
+    /**
+     * Retrieves the single activity that matches the given intent, or null if none found.
+     * @param intent The intent to query.
+     * @return The matching activity.
+     */
+    public ResolveInfo resolveActivity(Intent intent) {
+        ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
+        try {
+            return ContextUtils.getApplicationContext().getPackageManager().resolveActivity(
+                    intent, 0);
+        } finally {
+            StrictMode.setThreadPolicy(oldPolicy);
+        }
+    }
+
+    /**
+     * Retrieves the list of activities that can respond to the given intent.
+     * @param intent The intent to query.
+     * @return The list of activities that can respond to the intent.
+     */
+    public List<ResolveInfo> getActivitiesThatCanRespondToIntent(Intent intent) {
+        ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
+        try {
+            return ContextUtils.getApplicationContext().getPackageManager().queryIntentActivities(
+                    intent, 0);
+        } finally {
+            StrictMode.setThreadPolicy(oldPolicy);
+        }
+    }
+
+    /**
+     * Retrieves the list of services that can respond to the given intent.
+     * @param intent The intent to query.
+     * @return The list of services that can respond to the intent.
+     */
+    public List<ResolveInfo> getServicesThatCanRespondToIntent(Intent intent) {
+        ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
+        try {
+            return ContextUtils.getApplicationContext().getPackageManager().queryIntentServices(
+                    intent, 0);
+        } finally {
+            StrictMode.setThreadPolicy(oldPolicy);
+        }
+    }
+
+    /**
+     * Retrieves the label of the app.
+     * @param resolveInfo The identifying information for an app.
+     * @return The label for this app.
+     */
+    public CharSequence getAppLabel(ResolveInfo resolveInfo) {
+        return resolveInfo.loadLabel(ContextUtils.getApplicationContext().getPackageManager());
+    }
+
+    /**
+     * Retrieves the icon of the app.
+     * @param resolveInfo The identifying information for an app.
+     * @return The icon for this app.
+     */
+    public Drawable getAppIcon(ResolveInfo resolveInfo) {
+        return resolveInfo.loadIcon(ContextUtils.getApplicationContext().getPackageManager());
+    }
+}