Revert of Update mojo sdk to rev c02a28868825edfa57ab77947b8cb15e741c5598

third_party/mojo/src/mojo/public/cpp/bindings/callback.h

Index: third_party/mojo/src/mojo/public/cpp/bindings/callback.h
diff --git a/third_party/mojo/src/mojo/public/cpp/bindings/callback.h b/third_party/mojo/src/mojo/public/cpp/bindings/callback.h
index beec1a102e7024a44a33b51c20ba9da49e1ee4fe..17d1caf24a18efcb54b9602fd7b34fdbcd09698c 100644
--- a/third_party/mojo/src/mojo/public/cpp/bindings/callback.h
+++ b/third_party/mojo/src/mojo/public/cpp/bindings/callback.h
@@ -37,7 +37,7 @@
   explicit Callback(Runnable* runnable) : sink_(runnable) {}
 
   // As above, but can take an object that isn't derived from Runnable, so long
-  // as it has a compatible operator() or Run() method. operator() will be
+  // as it has a compatible operator() or Run() method.  operator() will be
   // preferred if the type has both.
   template <typename Sink>
   Callback(const Sink& sink) {
@@ -46,11 +46,6 @@
         FunctorAdapter<Sink>, RunnableAdapter<Sink>>::type;
     sink_ = internal::SharedPtr<Runnable>(new sink_type(sink));
   }
-
-  // As above, but can take a compatible function pointer.
-  Callback(void (*function_ptr)(
-      typename internal::Callback_ParamTraits<Args>::ForwardType...))
-      : sink_(new FunctionPtrAdapter(function_ptr)) {}
 
   // Executes the callback function, invoking Pass() on move-only types.
   void Run(typename internal::Callback_ParamTraits<Args>::ForwardType... args)
@@ -78,7 +73,7 @@
     Sink sink;
   };
 
-  // Adapts a class that has a compatible operator() to be callable by Callback.
+  // Adapts a class that has a compatible operator() callable by Callback.
   template <typename Sink>
   struct FunctorAdapter : public Runnable {
     explicit FunctorAdapter(const Sink& sink) : sink(sink) {}
@@ -90,20 +85,6 @@
     Sink sink;
   };
 
-  // Adapts a function pointer.
-  struct FunctionPtrAdapter : public Runnable {
-    explicit FunctionPtrAdapter(void (*function_ptr)(
-        typename internal::Callback_ParamTraits<Args>::ForwardType...))
-        : function_ptr(function_ptr) {}
-    virtual void Run(
-        typename internal::Callback_ParamTraits<Args>::ForwardType... args)
-        const override {
-      (*function_ptr)(internal::Forward(args)...);
-    }
-    void (*function_ptr)(
-        typename internal::Callback_ParamTraits<Args>::ForwardType...);
-  };
-
   internal::SharedPtr<Runnable> sink_;
 };