ChildThreadImpl comment typo

R=haraken@chromium.org

Bug: N/A
Change-Id: I00a2274e866abc0680db244d8f2a64fa3e17a909
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2391418Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Dominic Farolino <dom@chromium.org>
Cr-Commit-Position: refs/heads/master@{#804561}

content/child/child_thread_impl.h

@@ -260,7 +260,7 @@ class CONTENT_EXPORT ChildThreadImpl
   // An interface to the browser's process host object.
   mojo::SharedRemote<mojom::ChildProcessHost> child_process_host_;
 
-  // ChlidThreadImpl state which lives on the IO thread, including its
+  // ChildThreadImpl state which lives on the IO thread, including its
   // implementation of the mojom ChildProcess interface.
   scoped_refptr<IOThreadState> io_thread_state_;