Enable the optional permission prompt persistence toggle on grouped infobars

chrome/browser/media/media_stream_infobar_delegate_android.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/media/media_stream_infobar_delegate_android.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/infobars/infobar_service.h"
+#include "chrome/browser/permissions/permission_uma_util.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/content_settings/core/common/content_settings_types.h"
 #include "components/google/core/browser/google_util.h"
 #include "components/infobars/core/infobar.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/origin_util.h"
 #include "grit/components_strings.h"
 #include "grit/theme_resources.h"
 #include "ui/base/l10n/l10n_util.h"
@@ skipping 75 matching lines @@
   return this;
 }
 
 bool MediaStreamInfoBarDelegateAndroid::Accept() {
   if (GetPermissionCount() == 2) {
     controller_->GroupedRequestFinished(
         GetAcceptState(kGroupedInfobarAudioPosition),
         GetAcceptState(kGroupedInfobarVideoPosition));
   } else {
     DCHECK_EQ(1, GetPermissionCount());
-    controller_->PermissionGranted();
+    bool persist_permission = true;
+    if (ShouldShowPersistenceToggle()) {
+      persist_permission = persist();
+      PermissionUmaUtil::PermissionPromptAcceptedWithPersistenceToggle(
+          controller_->GetPermissionTypeForContentSettingsType(
+              GetContentSettingType(0)),
+          persist_permission);
+    }
+    controller_->PermissionGranted(persist_permission);
   }
   return true;
 }
 
 bool MediaStreamInfoBarDelegateAndroid::Cancel() {
-  controller_->PermissionDenied();
+  bool persist_permission = true;
+  if (ShouldShowPersistenceToggle()) {
+    persist_permission = persist();
+    PermissionUmaUtil::PermissionPromptDeniedWithPersistenceToggle(
+        controller_->GetPermissionTypeForContentSettingsType(
+            GetContentSettingType(0)),

[raymes, 2016/08/18 06:10:01]

How come we only deal with the case when one permission is shown? Will that
limit the usefulness? What were the complications with multiple?

[dominickn, 2016/08/18 06:38:20]

As discussed, enabling for multiple.

+        persist_permission);
+  }
+  controller_->PermissionDenied(persist_permission);
   return true;
 }