Change scoped_ptr to a type alias for std::unique_ptr for OS_ANDROID

base/memory/scoped_ptr.h

Index: base/memory/scoped_ptr.h
diff --git a/base/memory/scoped_ptr.h b/base/memory/scoped_ptr.h
index 358e9f18c53761ae5e3b2186d6ef84eccef46259..038f84af9ad7eec1b14363cf0933fd75e38037b1 100644
--- a/base/memory/scoped_ptr.h
+++ b/base/memory/scoped_ptr.h
@@ -123,7 +123,7 @@ struct FreeDeleter {
 // Now that scoped_ptr is almost 100% compatible with std::unique_ptr, we're
 // incrementally migrating scoped_ptr to just be a type alias for
 // std::unique_ptr. The eventual goal is to delete scoped_ptr altogether.
-#if defined(OS_LINUX) || defined(OS_WIN)
+#if defined(OS_LINUX) || defined(OS_WIN) || defined(OS_ANDROID)
 template <typename T, typename D = std::default_delete<T>>
 using scoped_ptr = std::unique_ptr<T, D>;