Revert of cc: Fix size_t to int truncations in layers/ output/ playback/ quads/

cc/quads/render_pass_id.cc

Index: cc/quads/render_pass_id.cc
diff --git a/cc/quads/render_pass_id.cc b/cc/quads/render_pass_id.cc
index 5fea6dc8cb287eff595c657dba740ce6c1cd67db..a84582c5ce3cbb7df4eda08479745eab7d270fbc 100644
--- a/cc/quads/render_pass_id.cc
+++ b/cc/quads/render_pass_id.cc
@@ -9,8 +9,7 @@
 void* RenderPassId::AsTracingId() const {
   static_assert(sizeof(size_t) <= sizeof(void*),  // NOLINT
                 "size of size_t should not be greater than that of a pointer");
-  return reinterpret_cast<void*>(
-      base::HashPair(layer_id, static_cast<int>(index)));
+  return reinterpret_cast<void*>(base::HashPair(layer_id, index));
 }
 
 }  // namespace cc