Convert //content/browser Uses of base::RepeatingCallback<>::Equals to Use == or !=

BUG=937566

Change-Id: I3bc8ad60e375e89ae70ee8abcc4d77fb62fd274a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1642240
Auto-Submit: Robert Liao <robliao@chromium.org>
Commit-Queue: Avi Drissman <avi@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#666431}

content/browser/renderer_host/render_widget_host_impl.cc

@@ -1600,7 +1600,7 @@ void RenderWidgetHostImpl::AddKeyPressEventCallback(
 void RenderWidgetHostImpl::RemoveKeyPressEventCallback(
     const KeyPressEventCallback& callback) {
   for (size_t i = 0; i < key_press_event_callbacks_.size(); ++i) {
-    if (key_press_event_callbacks_[i].Equals(callback)) {
+    if (key_press_event_callbacks_[i] == callback) {
       key_press_event_callbacks_.erase(
           key_press_event_callbacks_.begin() + i);
       return;
@@ -1616,7 +1616,7 @@ void RenderWidgetHostImpl::AddMouseEventCallback(
 void RenderWidgetHostImpl::RemoveMouseEventCallback(
     const MouseEventCallback& callback) {
   for (size_t i = 0; i < mouse_event_callbacks_.size(); ++i) {
-    if (mouse_event_callbacks_[i].Equals(callback)) {
+    if (mouse_event_callbacks_[i] == callback) {
       mouse_event_callbacks_.erase(mouse_event_callbacks_.begin() + i);
       return;
     }

content/browser/web_contents/web_contents_impl.cc

@@ -349,7 +349,7 @@ void WebContentsImpl::FriendWrapper::AddCreatedCallbackForTesting(
 void WebContentsImpl::FriendWrapper::RemoveCreatedCallbackForTesting(
     const CreatedCallback& callback) {
   for (size_t i = 0; i < g_created_callbacks.Get().size(); ++i) {
-    if (g_created_callbacks.Get().at(i).Equals(callback)) {
+    if (g_created_callbacks.Get().at(i) == callback) {
       g_created_callbacks.Get().erase(g_created_callbacks.Get().begin() + i);
       return;
     }