Deletes mojo::Callback

mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc

Index: mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc
diff --git a/mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc b/mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc
index fd01a3f20e2b9cc7bf74033d4ef7929e9871faec..cf898973a672f6aa82f71632174120b13e3b407a 100644
--- a/mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc
+++ b/mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc
@@ -6,6 +6,7 @@
 #include <utility>
 
 #include "base/bind.h"
+#include "base/callback.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "mojo/public/cpp/bindings/binding.h"
@@ -20,7 +21,7 @@ namespace mojo {
 namespace test {
 namespace {
 
-typedef mojo::Callback<void(double)> CalcCallback;
+typedef base::Callback<void(double)> CalcCallback;
 
 class MathCalculatorImpl : public math::Calculator {
  public: