Convert indirect uses of TestingFactoryFunction

TestingFactoryFunction is a simple function pointer. It is
deprecated in favor of TestingFactory which is a Callback<>.
Convert indirect uses by using base::BindRepeating() in all
invocation of SetTestingFactory/AddTestingFactory.

This converts uses in src//chrome/browser/apps/platform_apps/api/easy_unlock_private.

This CL was uploaded by git cl split.

R=jhawkins@chromium.org

Bug: 809610
Change-Id: I491e41bd7735ed3a940594eb11f88542dcc0e3e5
Reviewed-on: https://chromium-review.googlesource.com/c/1258906Reviewed-by: James Hawkins <jhawkins@chromium.org>
Commit-Queue: Sylvain Defresne <sdefresne@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600025}

chrome/browser/apps/platform_apps/api/easy_unlock_private/easy_unlock_private_api_chromeos_unittest.cc

@@ -7,6 +7,7 @@
 #include <memory>
 #include <utility>
 
+#include "base/bind.h"
 #include "chrome/browser/apps/platform_apps/api/easy_unlock_private/easy_unlock_private_connection_manager.h"
 #include "chrome/browser/extensions/extension_api_unittest.h"
 #include "components/cryptauth/fake_connection.h"
@@ -62,8 +63,9 @@ class EasyUnlockPrivateApiTest : public extensions::ExtensionApiUnittest {
     ExtensionApiUnittest::SetUp();
 
     EasyUnlockPrivateConnectionResourceManager::GetFactoryInstance()
-        ->SetTestingFactoryAndUse(browser()->profile(),
-                                  ApiResourceManagerTestFactory);
+        ->SetTestingFactoryAndUse(
+            browser()->profile(),
+            base::BindRepeating(&ApiResourceManagerTestFactory));
   }
 };