Add a feature to display a persistence toggle for permission prompts on Android.

chrome/browser/permissions/permission_infobar_delegate.cc

 // Copyright 2014 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/permissions/permission_infobar_delegate.h"
 
+#include "base/feature_list.h"
 #include "chrome/browser/permissions/permission_request.h"
 #include "chrome/browser/permissions/permission_uma_util.h"
+#include "chrome/common/chrome_features.h"
 #include "chrome/grit/generated_resources.h"
-#include "components/infobars/core/infobar.h"
 #include "components/url_formatter/elide_url.h"
 #include "ui/base/l10n/l10n_util.h"
 
+bool PermissionInfobarDelegate::ShouldShowPersistenceToggle() const {
+  return base::FeatureList::IsEnabled(
+      features::kDisplayPersistenceToggleInPermissionPrompts);
+}
+
 PermissionInfobarDelegate::~PermissionInfobarDelegate() {
   if (!action_taken_) {
     PermissionUmaUtil::PermissionIgnored(
         permission_type_,
         user_gesture_ ? PermissionRequestGestureType::GESTURE
                       : PermissionRequestGestureType::NO_GESTURE,
         requesting_origin_, profile_);
   }
 }
 
 PermissionInfobarDelegate::PermissionInfobarDelegate(
     const GURL& requesting_origin,
     content::PermissionType permission_type,
     ContentSettingsType content_settings_type,
     bool user_gesture,
     Profile* profile,
-    const base::Callback<void(bool, bool)>& callback)
+    const PermissionSetCallback& callback)
     : requesting_origin_(requesting_origin),
-      action_taken_(false),
       permission_type_(permission_type),
       content_settings_type_(content_settings_type),
+      profile_(profile),
+      callback_(callback),
+      action_taken_(false),
       user_gesture_(user_gesture),
-      profile_(profile),
-      callback_(callback) {}
+      persist_(true) {}
 
 base::string16 PermissionInfobarDelegate::GetMessageText() const {
   return l10n_util::GetStringFUTF16(
       GetMessageResourceId(),
       url_formatter::FormatUrlForSecurityDisplay(
           requesting_origin_,
           url_formatter::SchemeDisplay::OMIT_CRYPTOGRAPHIC));
 }
 
 infobars::InfoBarDelegate::Type PermissionInfobarDelegate::GetInfoBarType()
     const {
   return PAGE_ACTION_TYPE;
 }
 
 void PermissionInfobarDelegate::InfoBarDismissed() {
-  SetPermission(false, false);
+  SetPermission(false, DISMISSED);
 }
 
 PermissionInfobarDelegate*
 PermissionInfobarDelegate::AsPermissionInfobarDelegate() {
   return this;
 }
 
 base::string16 PermissionInfobarDelegate::GetButtonLabel(
     InfoBarButton button) const {
   return l10n_util::GetStringUTF16((button == BUTTON_OK) ?
       IDS_PERMISSION_ALLOW : IDS_PERMISSION_DENY);
 }
 
 bool PermissionInfobarDelegate::Accept() {
-  SetPermission(true, true);
+  bool update_content_setting = true;
+  if (ShouldShowPersistenceToggle()) {
+    update_content_setting = persist_;
+    PermissionUmaUtil::PermissionPromptGrantedWithPersistenceToggle(
+        permission_type_, persist_);
+  }
+
+  SetPermission(update_content_setting, GRANTED);
   return true;
 }
 
 bool PermissionInfobarDelegate::Cancel() {
-  SetPermission(true, false);
+  bool update_content_setting = true;
+  if (ShouldShowPersistenceToggle()) {
+    update_content_setting = persist_;
+    PermissionUmaUtil::PermissionPromptDeniedWithPersistenceToggle(
+        permission_type_, persist_);
+  }
+
+  SetPermission(update_content_setting, DENIED);
   return true;
 }
 
 void PermissionInfobarDelegate::SetPermission(bool update_content_setting,
-                                              bool allowed) {
+                                              PermissionAction decision) {
   action_taken_ = true;
-  callback_.Run(update_content_setting, allowed);
+  callback_.Run(update_content_setting, decision);
 }