Reintroduce plumbing for user gesture into permission system.

chrome/browser/notifications/notification_permission_context_unittest.cc

Index: chrome/browser/notifications/notification_permission_context_unittest.cc
diff --git a/chrome/browser/notifications/notification_permission_context_unittest.cc b/chrome/browser/notifications/notification_permission_context_unittest.cc
index 0aa58db82cbea7f4f891a9f2ed41715513390e6c..6ae74b526918de636d79377bd890d53dd7032dfc 100644
--- a/chrome/browser/notifications/notification_permission_context_unittest.cc
+++ b/chrome/browser/notifications/notification_permission_context_unittest.cc
@@ -162,7 +162,7 @@ TEST_F(NotificationPermissionContextTest, TestDenyInIncognitoAfterDelay) {
             permission_context.last_permission_set_setting());
 
   permission_context.RequestPermission(
-      web_contents(), id, url, base::Bind(&DoNothing));
+      web_contents(), id, url, true /* user_gesture */, base::Bind(&DoNothing));
 
   // Should be blocked after 1-2 seconds, but the timer is reset whenever the
   // tab is not visible, so these 500ms never add up to >= 1 second.
@@ -231,7 +231,7 @@ TEST_F(NotificationPermissionContextTest, TestCancelledIncognitoRequest) {
   // failing, PermissionManager::OnPermissionsRequestResponseStatus will crash.
   int request_id = permission_manager->RequestPermission(
       content::PermissionType::NOTIFICATIONS, web_contents()->GetMainFrame(),
-      url.GetOrigin(), base::Bind(&DoNothing2));
+      url.GetOrigin(), true /* user_gesture */, base::Bind(&DoNothing2));
 
   permission_manager->CancelPermissionRequest(request_id);
 
@@ -265,8 +265,10 @@ TEST_F(NotificationPermissionContextTest, TestParallelDenyInIncognito) {
             permission_context.last_permission_set_setting());
 
   permission_context.RequestPermission(web_contents(), id0, url,
+                                       true /* user_gesture */,
                                        base::Bind(&DoNothing));
   permission_context.RequestPermission(web_contents(), id1, url,
+                                       true /* user_gesture */,
                                        base::Bind(&DoNothing));
 
   EXPECT_EQ(0, permission_context.permission_set_count());