Tag some of Mojo heap allocations for the heap profiler.

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

Index: mojo/public/cpp/bindings/lib/multiplex_router.h
diff --git a/mojo/public/cpp/bindings/lib/multiplex_router.h b/mojo/public/cpp/bindings/lib/multiplex_router.h
index f874a4b09fa5f2cff0d1cbf21362f30c7f10b550..c1e02984401bf5e6671e9793fc5e4f680da7190a 100644
--- a/mojo/public/cpp/bindings/lib/multiplex_router.h
+++ b/mojo/public/cpp/bindings/lib/multiplex_router.h
@@ -79,7 +79,8 @@ class MOJO_CPP_BINDINGS_EXPORT MultiplexRouter
 
   // Sets the master interface name for this router. Only used when reporting
   // message header or control message validation errors.
-  void SetMasterInterfaceName(const std::string& name);
+  // |name| must be a string literal.
+  void SetMasterInterfaceName(const char* name);
 
   // ---------------------------------------------------------------------------
   // The following public methods are safe to call from any threads.