Changing SpawnChild to return a struct.

base/android/jni_array.h

Index: base/android/jni_array.h
diff --git a/base/android/jni_array.h b/base/android/jni_array.h
index 58282b1b0c7dfacc443f8fb253f1083ee7fcd02e..b3b11d358a3f1764c2d1522f4d8dbbdf71b061d5 100644
--- a/base/android/jni_array.h
+++ b/base/android/jni_array.h
@@ -104,6 +104,12 @@ BASE_EXPORT void JavaFloatArrayToFloatVector(
     jfloatArray float_array,
     std::vector<float>* out);
 
+// Replaces the content of |out| with the Java objects in |jobject_array|.
+BASE_EXPORT void JavaJObjectArrayToJObjectVector(
+    JNIEnv* env,
+    jobjectArray jobject_array,
+    std::vector<ScopedJavaLocalRef<jobject>>* out);
+
 // Assuming |array| is an byte[][] (array of byte arrays), replaces the
 // content of |out| with the corresponding vector of strings. No UTF-8
 // conversion is performed.