[mojo-edk] Expose notification source to MojoWatch callbacks

mojo/public/cpp/bindings/lib/interface_ptr_state.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_PTR_STATE_H_
 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_PTR_STATE_H_
 
 #include <stdint.h>
 #include <algorithm>  // For |std::swap()|.
 #include <utility>
@@ skipping 121 matching lines @@
     router_->set_connection_error_handler(error_handler);
   }
 
   // Returns true if bound and awaiting a response to a message.
   bool has_pending_callbacks() const {
     return router_ && router_->has_pending_responders();
   }
 
   AssociatedGroup* associated_group() { return nullptr; }
 
+  void SetAllowSyncDispatch(bool allowed) {
+    DCHECK(router_);
+    router_->SetAllowSyncDispatch(allowed);
+  }
+
   void EnableTestingMode() {
     ConfigureProxyIfNecessary();
     router_->EnableTestingMode();
   }
 
  private:
   using Proxy = typename Interface::Proxy_;
 
   void ConfigureProxyIfNecessary() {
     // The proxy has been configured.
@@ skipping 135 matching lines @@
   // Returns true if bound and awaiting a response to a message.
   bool has_pending_callbacks() const {
     return endpoint_client_ && endpoint_client_->has_pending_responders();
   }
 
   AssociatedGroup* associated_group() {
     ConfigureProxyIfNecessary();
     return endpoint_client_->associated_group();
   }
 
+  void SetAllowSyncDispatch(bool allowed) {
+    DCHECK(router_);
+    router_->SetAllowSyncDispatch(allowed);
+  }
+
   void EnableTestingMode() {
     ConfigureProxyIfNecessary();
     router_->EnableTestingMode();
   }
 
  private:
   using Proxy = typename Interface::Proxy_;
 
   void ConfigureProxyIfNecessary() {
     // The proxy has been configured.
@@ skipping 26 matching lines @@
 
   uint32_t version_;
 
   DISALLOW_COPY_AND_ASSIGN(InterfacePtrState);
 };
 
 }  // namespace internal
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_PTR_STATE_H_