Allow `base::Reversed` in `renderer`

`base::Reversed` is allowed only in `platform` since r566980
(CL:1094849). This patch changes it to allow in `renderer` to
make reverse range-based loops more readable.

Change-Id: Ib903c9ed4ae53e95cecf051ccd652e26d6ac3783
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1638950Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Koji Ishii <kojii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#665425}

third_party/blink/renderer/DEPS

@@ -5,6 +5,7 @@ include_rules = [
     "+base/bit_cast.h",
     "+base/callback.h",
     "+base/callback_forward.h",
+    "+base/containers/adapters.h",
     "+base/containers/span.h",
     "+base/debug",
     "+base/feature_list.h",

third_party/blink/renderer/platform/DEPS

@@ -10,7 +10,6 @@ include_rules = [
     "+base/cpu.h",
     "+base/feature_list.h",
     "+base/files",
-    "+base/containers/adapters.h",
     "+base/containers/flat_map.h",
     "+base/guid.h",
     "+base/json",