Change CookieStore::DeleteCallback to take uint32_t.

chrome/browser/sessions/session_data_deleter.cc

Index: chrome/browser/sessions/session_data_deleter.cc
diff --git a/chrome/browser/sessions/session_data_deleter.cc b/chrome/browser/sessions/session_data_deleter.cc
index 72af6aaa101e5cac5c96ec312cf69debb4211c3b..a1be97d90ad87f0b08e667e56b49e13a71e66819 100644
--- a/chrome/browser/sessions/session_data_deleter.cc
+++ b/chrome/browser/sessions/session_data_deleter.cc
@@ -4,6 +4,8 @@
 
 #include <stddef.h>
 
+#include <cstdint>
+
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/macros.h"
@@ -26,8 +28,8 @@
 
 namespace {
 
-void CookieDeleted(int num_cookies_deleted) {
-  DCHECK_EQ(1, num_cookies_deleted);
+void CookieDeleted(uint32_t num_cookies_deleted) {
+  DCHECK_EQ(1u, num_cookies_deleted);
 }
 
 class SessionDataDeleter
@@ -59,7 +61,7 @@ class SessionDataDeleter
 
   // Called when all session-only cookies have been deleted.
   void DeleteSessionCookiesDone(net::CookieStore* cookie_store,
-                                int num_deleted);
+                                uint32_t num_deleted);
 
   // Deletes the cookies in |cookies| that are for origins which are
   // session-only.
@@ -134,7 +136,7 @@ void SessionDataDeleter::DeleteSessionCookiesOnIOThread(
 
 void SessionDataDeleter::DeleteSessionCookiesDone(
     net::CookieStore* cookie_store,
-    int num_deleted) {
+    uint32_t num_deleted) {
   // If these callbacks are invoked, |cookie_store| is gauranteed to still
   // exist, since deleting the CookieStore will cancel pending callbacks.
   cookie_store->GetAllCookiesAsync(