Change CookieStore::DeleteCallback to take uint32_t.

ios/chrome/browser/ui/chrome_web_view_factory.mm

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "ios/chrome/browser/ui/chrome_web_view_factory.h"
 
+#include <stdint.h>
+
 #include "base/base64.h"
 #include "base/logging.h"
 #include "ios/chrome/browser/browser_state/chrome_browser_state.h"
 #include "ios/web/net/request_group_util.h"
 #include "ios/web/net/request_tracker_impl.h"
 #include "ios/web/public/web_thread.h"
 #include "net/cookies/cookie_store.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_context_getter.h"
 
@@ skipping 28 matching lines @@
       return path.Append("ExternalUnknownService");
   }
 }
 }  // namespace ChromeWebView
 
 namespace {
 ios::ChromeBrowserState* g_external_browser_state = nullptr;
 scoped_refptr<web::RequestTrackerImpl> g_request_tracker;
 
 // Empty callback used by ClearCookiesOnIOThread below.
-void DoNothing(int n) {}
+void DoNothing(uint32_t n) {}
 
 // Clears the cookies.
 void ClearCookiesOnIOThread(net::URLRequestContextGetter* context_getter,
                             base::Time delete_begin,
                             base::Time delete_end) {
   DCHECK(context_getter);
   DCHECK_CURRENTLY_ON(web::WebThread::IO);
   net::CookieStore* cookie_store =
       context_getter->GetURLRequestContext()->cookie_store();
   cookie_store->DeleteAllCreatedBetweenAsync(delete_begin, delete_end,
@@ skipping 91 matching lines @@
   if (!g_request_tracker.get()) {
     DCHECK(g_external_browser_state);
     g_request_tracker = web::RequestTrackerImpl::CreateTrackerForRequestGroupID(
         ChromeWebView::kExternalRequestGroupID, g_external_browser_state,
         [self requestContextForExternalService:externalService], nil);
   }
   return [[UIWebView alloc] initWithFrame:CGRectZero];
 }
 
 @end