Switch to standard integer types in chromeos/.

chromeos/dbus/amplifier_client.h

Index: chromeos/dbus/amplifier_client.h
diff --git a/chromeos/dbus/amplifier_client.h b/chromeos/dbus/amplifier_client.h
index c63a286ff9e0e6b651531c16a8b8ccdc92b4fe18..4ff3ab1cc80be11556ad7de710a172d302b3f0ab 100644
--- a/chromeos/dbus/amplifier_client.h
+++ b/chromeos/dbus/amplifier_client.h
@@ -5,7 +5,9 @@
 #ifndef CHROMEOS_DBUS_AMPLIFIER_CLIENT_H_
 #define CHROMEOS_DBUS_AMPLIFIER_CLIENT_H_
 
-#include "base/basictypes.h"
+#include <stdint.h>
+
+#include "base/macros.h"
 #include "chromeos/chromeos_export.h"
 #include "chromeos/dbus/dbus_client.h"
 #include "chromeos/dbus/dbus_method_call_status.h"
@@ -20,7 +22,7 @@ class CHROMEOS_EXPORT AmplifierClient : public DBusClient {
    public:
     virtual ~Observer() {}
     // Called when the Error signal is received.
-    virtual void OnError(int32 error_code) = 0;
+    virtual void OnError(int32_t error_code) = 0;
   };
 
   ~AmplifierClient() override;