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=jochen@chromium.org

Bug: 681136
Change-Id: I2de6838cb20e249234f820aa84d996311acc58c1
Reviewed-on: https://chromium-review.googlesource.com/c/1288345Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600986}

extensions/renderer/native_renderer_messaging_service_unittest.cc

@@ -463,8 +463,7 @@ TEST_F(NativeRendererMessagingServiceTest, TestExternalOneTimeMessages) {
   const PortId on_message_external_port_id(other_context_id, ++next_port_id,
                                            false);
 
-  auto open_port = [this, &other_context_id](const PortId& port_id,
-                                             const ExtensionId& source_id) {
+  auto open_port = [this](const PortId& port_id, const ExtensionId& source_id) {
     ExtensionMsg_TabConnectionInfo tab_connection_info;
     tab_connection_info.frame_id = 0;
     const int tab_id = 10;