Changing SpawnChild to return a struct.

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 4866e754fd1376579a06333d4d49d331cd9c33bc..59ae8c7614943bccecf1af58784de2befeb6785e 100644
--- a/mojo/edk/embedder/platform_handle.h
+++ b/mojo/edk/embedder/platform_handle.h
@@ -14,6 +14,9 @@
 #include "base/process/process_handle.h"
 #elif defined(OS_MACOSX) && !defined(OS_IOS)
 #include <mach/mach.h>
+#elif defined(OS_ANDROID)
+#include <jni.h>
+#include "base/android/scoped_java_ref.h"
 #endif
 
 namespace mojo {
@@ -27,6 +30,11 @@ struct MOJO_SYSTEM_IMPL_EXPORT PlatformHandle {
   explicit PlatformHandle(mach_port_t port)
       : type(Type::MACH), port(port) {}
 #endif
+#if defined(OS_ANDROID)
+  explicit PlatformHandle(
+      const base::android::ScopedJavaLocalRef<jobject>& parcelable_param)
+      : type(Type::PARCELABLE), parcelable(parcelable_param) {}
+#endif
 
   void CloseIfNecessary();
 
@@ -35,6 +43,10 @@ struct MOJO_SYSTEM_IMPL_EXPORT PlatformHandle {
     if (type == Type::MACH || type == Type::MACH_NAME)
       return port != MACH_PORT_NULL;
 #endif
+#if defined(OS_ANDROID)
+    if (type == Type::PARCELABLE)  // || type == Type::PARCELABLE_ID)
+      return !parcelable.is_null();
+#endif
     return handle != -1;
   }
 
@@ -48,6 +60,10 @@ struct MOJO_SYSTEM_IMPL_EXPORT PlatformHandle {
     // this also allows us to do checks in other places.
     MACH_NAME,
 #endif
+#if defined(OS_ANDROID)
+    PARCELABLE,
+// PARCELABLE_ID,
+#endif
   };
   Type type = Type::POSIX;
 
@@ -59,6 +75,9 @@ struct MOJO_SYSTEM_IMPL_EXPORT PlatformHandle {
 #if defined(OS_MACOSX) && !defined(OS_IOS)
   mach_port_t port = MACH_PORT_NULL;
 #endif
+#if defined(OS_ANDROID)
+  base::android::ScopedJavaGlobalRef<jobject> parcelable;
+#endif
 };
 #elif defined(OS_WIN)
 struct MOJO_SYSTEM_IMPL_EXPORT PlatformHandle {