add getBrowserDescriptor()

library/java/net/openid/appauth/AuthorizationService.java

@@ -121,6 +121,14 @@ public CustomTabManager getCustomTabManager() {
         return mCustomTabManager;
     }
 
+    /**
+     * Returns the BrowserDescriptor of the chosen browser.
+     * Can for example be used to set the browsers package name to a CustomTabsIntent.
+     */
+    public BrowserDescriptor getBrowserDescriptor() {
+        return mBrowser;
+    }
+
     /**
      * Creates a custom tab builder, that will use a tab session from an existing connection to
      * a web browser, if available.

library/javatests/net/openid/appauth/AuthorizationServiceTest.java

@@ -27,6 +27,7 @@
 
 import net.openid.appauth.AppAuthConfiguration.Builder;
 import net.openid.appauth.AuthorizationException.GeneralErrors;
+import net.openid.appauth.browser.BrowserDescriptor;
 import net.openid.appauth.browser.Browsers;
 import net.openid.appauth.browser.CustomTabManager;
 import net.openid.appauth.connectivity.ConnectionBuilder;
@@ -119,6 +120,7 @@ public class AuthorizationServiceTest {
     private RegistrationCallback mRegistrationCallback;
     private AuthorizationService mService;
     private OutputStream mOutputStream;
+    private BrowserDescriptor mBrowserDescriptor;
     @Mock ConnectionBuilder mConnectionBuilder;
     @Mock HttpURLConnection mHttpConnection;
     @Mock PendingIntent mPendingIntent;
@@ -132,12 +134,13 @@ public void setUp() throws Exception {
         MockitoAnnotations.initMocks(this);
         mAuthCallback = new AuthorizationCallback();
         mRegistrationCallback = new RegistrationCallback();
+        mBrowserDescriptor = Browsers.Chrome.customTab("46");
         mService = new AuthorizationService(
                 mContext,
                 new Builder()
                         .setConnectionBuilder(mConnectionBuilder)
                         .build(),
-                Browsers.Chrome.customTab("46"),
+                mBrowserDescriptor,
                 mCustomTabManager);
         mOutputStream = new ByteArrayOutputStream();
         when(mConnectionBuilder.openConnection(any(Uri.class))).thenReturn(mHttpConnection);
@@ -397,6 +400,11 @@ public void testCreateCustomTabsIntentBuilder_afterDispose() throws Exception {
         mService.createCustomTabsIntentBuilder();
     }
 
+    @Test
+    public void testGetBrowserDescriptor_browserAvailable() {
+        assertEquals(mService.getBrowserDescriptor(), mBrowserDescriptor);
+    }
+
     private Intent captureAuthRequestIntent() {
         ArgumentCaptor<Intent> intentCaptor = ArgumentCaptor.forClass(Intent.class);
         verify(mContext).startActivity(intentCaptor.capture());