[MediaRouter, Android] Don't ignore device selection dialog failures in MediaRouter integration tes…

chrome/android/javatests/src/org/chromium/chrome/browser/media/RouterTestUtils.java

 // Copyright 2016 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.media;
 
 import android.app.Dialog;
 import android.app.Instrumentation;
 import android.os.SystemClock;
 import android.support.v4.app.DialogFragment;
@@ skipping 19 matching lines @@
     private static final String TAG = "RouterTestUtils";
 
     public static View waitForRouteButton(
             final ChromeActivity activity, final String chromecastName,
             int maxTimeoutMs, int intervalMs) {
         return waitForView(new Callable<View>() {
                 @Override
                 public View call() {
                     Dialog mediaRouteListDialog = getDialog(activity);
                     if (mediaRouteListDialog == null) {
-                        Log.w(TAG, "Cannot find choose device dialog");
+                        Log.w(TAG, "Cannot find device selection dialog");
                         return null;
                     }
                     View mediaRouteList =
                             mediaRouteListDialog.findViewById(R.id.mr_chooser_list);
                     if (mediaRouteList == null) {
                         Log.w(TAG, "Cannot find device list");
                         return null;
                     }
                     ArrayList<View> routesWanted = new ArrayList<View>();
                     mediaRouteList.findViewsWithText(routesWanted, chromecastName,
                                                      View.FIND_VIEWS_WITH_TEXT);
                     if (routesWanted.size() == 0) {
                         Log.w(TAG, "Cannot find wanted device");
                         return null;
                     }
-
+                    Log.i(TAG, "Found wanted device");
                     return routesWanted.get(0);
                 }
             }, maxTimeoutMs, intervalMs);
     }
 
     public static Dialog waitForDialog(
             final ChromeActivity activity,
             int maxTimeoutMs, int intervalMs) {
         try {
             CriteriaHelper.pollUiThread(new Criteria() {
                     @Override
                     public boolean isSatisfied() {
                         try {
-                            return getDialog(activity) != null;
+                            if (getDialog(activity) != null) {
+                                Log.i(TAG, "Found device selection dialog");
+                                return true;
+                            } else {
+                                Log.w(TAG, "Cannot find device selection dialog");
+                                return false;
+                            }
                         } catch (Exception e) {
                             return false;
                         }
                     }
                 }, maxTimeoutMs, intervalMs);
             return getDialog(activity);
         } catch (Exception e) {
             return null;
         }
     }
@@ skipping 101 matching lines @@
      *
      * @param instrumentation Instrumentation object used by the test.
      * @param v The view the coordinates are relative to.
      */
     public static void mouseSingleClickView(Instrumentation instrumentation, View v) {
         int x = v.getWidth() / 2;
         int y = v.getHeight() / 2;
         mouseSingleClickView(instrumentation, v, x, y);
     }
 }