Convert D-Bus Uses of base::RepeatingCallback<>::Equals to Use == or !=

BUG=937566

Change-Id: Ie98a37e92c88c6e38376bd81c739696968093841
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1642741
Auto-Submit: Robert Liao <robliao@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: Robert Liao <robliao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#666159}

dbus/bus.cc

@@ -976,7 +976,7 @@ void Bus::ListenForServiceOwnerChangeInternal(
   // Check if the callback has already been added.
   std::vector<GetServiceOwnerCallback>& callbacks = it->second;
   for (size_t i = 0; i < callbacks.size(); ++i) {
-    if (callbacks[i].Equals(callback))
+    if (callbacks[i] == callback)
       return;
   }
   callbacks.push_back(callback);
@@ -1008,7 +1008,7 @@ void Bus::UnlistenForServiceOwnerChangeInternal(
 
   std::vector<GetServiceOwnerCallback>& callbacks = it->second;
   for (size_t i = 0; i < callbacks.size(); ++i) {
-    if (callbacks[i].Equals(callback)) {
+    if (callbacks[i] == callback) {
       callbacks.erase(callbacks.begin() + i);
       break;  // There can be only one.
     }