Convert //base to use std::unique_ptr

With bonus IWYU fixes that weren't caught by local android gn, cros gn,
linux gn, mac gyp, and win gyp builds.

BUG=554298
[email protected]

Review URL: https://codereview.chromium.org/1852433005

Cr-Commit-Position: refs/heads/master@{#385011}
diff --git a/base/supports_user_data.h b/base/supports_user_data.h
index ab40c1b..a9f1c93 100644
--- a/base/supports_user_data.h
+++ b/base/supports_user_data.h
@@ -6,11 +6,11 @@
 #define BASE_SUPPORTS_USER_DATA_H_
 
 #include <map>
+#include <memory>
 
 #include "base/base_export.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/threading/thread_checker.h"
 
 namespace base {
@@ -47,7 +47,7 @@
   virtual ~SupportsUserData();
 
  private:
-  using DataMap = std::map<const void*, scoped_ptr<Data>>;
+  using DataMap = std::map<const void*, std::unique_ptr<Data>>;
 
   // Externally-defined data accessible by key.
   DataMap user_data_;