Documentation cleanup.

R=ppi@chromium.org, ppi

Review URL: https://codereview.chromium.org/2006623002 .

shell/android/ui_application_loader_android.cc

diff --git a/shell/android/ui_application_loader_android.cc b/shell/android/ui_application_loader_android.cc
index 5e16ed2..67612db 100644
--- a/shell/android/ui_application_loader_android.cc
+++ b/shell/android/ui_application_loader_android.cc
@@ -6,7 +6,6 @@
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
-#include "shell/application_manager/application_manager.h"
 
 namespace shell {
 

shell/android/ui_application_loader_android.h

diff --git a/shell/android/ui_application_loader_android.h b/shell/android/ui_application_loader_android.h
index b3c3e94..3a08b04 100644
--- a/shell/android/ui_application_loader_android.h
+++ b/shell/android/ui_application_loader_android.h
@@ -35,9 +35,7 @@
   class UILoader;
 
   // These functions are exected on the background thread. They call through
-  // to |background_loader_| to do the actual loading.
-  // TODO: having this code take a |manager| is fragile (as ApplicationManager
-  // isn't thread safe).
+  // to |loader_| to do the actual loading.
   void LoadOnUIThread(
       const GURL& url,
       mojo::InterfaceRequest<mojo::Application> application_request);