Fix remaining incompatibilities between scoped_ptr and unique_ptr.

ui/views/controls/native/native_view_host_aura.cc

Index: ui/views/controls/native/native_view_host_aura.cc
diff --git a/ui/views/controls/native/native_view_host_aura.cc b/ui/views/controls/native/native_view_host_aura.cc
index 2a7d914d6840c588ae3b16e66ba0381056dd8729..6bf4ce8a3db8b3376e5d6436414bd0d549e84902 100644
--- a/ui/views/controls/native/native_view_host_aura.cc
+++ b/ui/views/controls/native/native_view_host_aura.cc
@@ -138,7 +138,7 @@ void NativeViewHostAura::InstallClip(int x, int y, int w, int h) {
 }
 
 bool NativeViewHostAura::HasInstalledClip() {
-  return clip_rect_;
+  return !!clip_rect_;
 }
 
 void NativeViewHostAura::UninstallClip() {