exo: Fix cursor scaling for 1.25 DSF

components/exo/pointer.h

Index: components/exo/pointer.h
diff --git a/components/exo/pointer.h b/components/exo/pointer.h
index 6dc1a0ba03e6c9becdf009948c5c68cf902d3074..c64d1af0ffa79a091d631831bcd4f61f3060fce5 100644
--- a/components/exo/pointer.h
+++ b/components/exo/pointer.h
@@ -111,10 +111,13 @@ class Pointer : public ui::EventHandler,
   // The current cursor.
   ui::Cursor cursor_;
 
-  // Scale at which cursor snapshot is captured. The resulting bitmap is scaled
-  // on displays whose DSF does not match this scale.
+  // Scale at which cursor snapshot is captured.
   float capture_scale_;
 
+  // Density ratio of the cursor snapshot. The bitmap is scaled on displays with
+  // a different ratio.
+  float capture_ratio_;
+
   // Source used for cursor capture copy output requests.
   const base::UnguessableToken cursor_capture_source_id_;