[mojo-edk] Expose portable API for platform handle wrapping

mojo/edk/embedder/platform_handle.h

Index: mojo/edk/embedder/platform_handle.h
diff --git a/mojo/edk/embedder/platform_handle.h b/mojo/edk/embedder/platform_handle.h
index 675dd1fe9c8f480c1a5e4fd42120dfc6007d16f5..4978d8cfe2005be787225de5ab5ae3e05caacde9 100644
--- a/mojo/edk/embedder/platform_handle.h
+++ b/mojo/edk/embedder/platform_handle.h
@@ -59,7 +59,7 @@ struct MOJO_SYSTEM_IMPL_EXPORT PlatformHandle {
 };
 #elif defined(OS_WIN)
 struct MOJO_SYSTEM_IMPL_EXPORT PlatformHandle {
-  PlatformHandle() : handle(INVALID_HANDLE_VALUE) {}
+  PlatformHandle() : PlatformHandle(INVALID_HANDLE_VALUE) {}
   explicit PlatformHandle(HANDLE handle)
       : handle(handle), owning_process(base::GetCurrentProcessHandle()) {}