Switch to standard integer types in ios/.

ios/chrome/browser/metrics/ios_chrome_metrics_service_client.h

Index: ios/chrome/browser/metrics/ios_chrome_metrics_service_client.h
diff --git a/ios/chrome/browser/metrics/ios_chrome_metrics_service_client.h b/ios/chrome/browser/metrics/ios_chrome_metrics_service_client.h
index 196867384c26563eb94dd281ba929ad42b674f59..f2a9f8d3f9d64219215e503565e134a9fae3f5bf 100644
--- a/ios/chrome/browser/metrics/ios_chrome_metrics_service_client.h
+++ b/ios/chrome/browser/metrics/ios_chrome_metrics_service_client.h
@@ -5,10 +5,12 @@
 #ifndef IOS_CHROME_BROWSER_METRICS_IOS_CHROME_METRICS_SERVICE_CLIENT_H_
 #define IOS_CHROME_BROWSER_METRICS_IOS_CHROME_METRICS_SERVICE_CLIENT_H_
 
+#include <stdint.h>
+
 #include <string>
 
-#include "base/basictypes.h"
 #include "base/callback.h"
+#include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
@@ -54,7 +56,7 @@ class IOSChromeMetricsServiceClient
   void SetMetricsClientId(const std::string& client_id) override;
   void OnRecordingDisabled() override;
   bool IsOffTheRecordSessionActive() override;
-  int32 GetProduct() override;
+  int32_t GetProduct() override;
   std::string GetApplicationLocale() override;
   bool GetBrand(std::string* brand_code) override;
   metrics::SystemProfileProto::Channel GetChannel() override;