Fix for unused-lambda-capture warning

This CL is part of
https://chromium-review.googlesource.com/c/chromium/src/+/1286017

This CL was uploaded by git cl split.

R=yosin@chromium.org

Bug: 681136
Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_layout_ng
Change-Id: I6bd5a1a0e8a2050c579cf459e243c5b63185b1f6
Reviewed-on: https://chromium-review.googlesource.com/c/1288515Reviewed-by: Yoshifumi Inoue <yosin@chromium.org>
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600701}

third_party/blink/renderer/core/editing/markers/document_marker_controller.cc

@@ -206,10 +206,9 @@ void DocumentMarkerController::AddSuggestionMarker(
     const EphemeralRange& range,
     const SuggestionMarkerProperties& properties) {
   DCHECK(!document_->NeedsLayoutTreeUpdate());
-  AddMarkerInternal(
-      range, [this, &properties](int start_offset, int end_offset) {
-        return new SuggestionMarker(start_offset, end_offset, properties);
-      });
+  AddMarkerInternal(range, [&properties](int start_offset, int end_offset) {
+    return new SuggestionMarker(start_offset, end_offset, properties);
+  });
 }
 
 void DocumentMarkerController::PrepareForDestruction() {