Convert proxy_config_service_linux to BindRepeating.

Bug: 1007815
Change-Id: Icae708380d0ac98643e6620e2d593a240e6872ba
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2089786
Commit-Queue: Matt Menke <mmenke@chromium.org>
Reviewed-by: Matt Menke <mmenke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#748253}

net/proxy_resolution/proxy_config_service_linux.cc

@@ -651,7 +651,8 @@ class SettingGetterImplKDE : public ProxyConfigServiceLinux::SettingGetter {
     }
     notify_delegate_ = delegate;
     inotify_watcher_ = base::FileDescriptorWatcher::WatchReadable(
-        inotify_fd_, base::Bind(&SettingGetterImplKDE::OnChangeNotification,
+        inotify_fd_,
+        base::BindRepeating(&SettingGetterImplKDE::OnChangeNotification,
                             base::Unretained(this)));
     // Simulate a change to avoid possibly losing updates before this point.
     OnChangeNotification();