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/prerender.

This CL was uploaded by git cl split.

R=mattcary@chromium.org

Bug: 809610
Change-Id: I34264dec9e444fac342146dadbdf8453d3dad870
Reviewed-on: https://chromium-review.googlesource.com/c/1259036
Commit-Queue: Sylvain Defresne <sdefresne@chromium.org>
Reviewed-by: Matthew Cary <mattcary@chromium.org>
Cr-Commit-Position: refs/heads/master@{#596605}

chrome/browser/prerender/prerender_browsertest.cc

@@ -3093,8 +3093,9 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, AutosigninInPrerenderer) {
     base::ScopedAllowBlockingForTesting allow_blocking;
     PasswordStoreFactory::GetInstance()->SetTestingFactory(
         current_browser()->profile(),
-        password_manager::BuildPasswordStore<
-            content::BrowserContext, password_manager::TestPasswordStore>);
+        base::BindRepeating(
+            &password_manager::BuildPasswordStore<
+                content::BrowserContext, password_manager::TestPasswordStore>));
   }
   scoped_refptr<password_manager::TestPasswordStore> password_store =
       static_cast<password_manager::TestPasswordStore*>(