Revert "Rewrite previously excluded raw_ptr fields"

This reverts commit 8a98a9bad2a2f3fc9a7a8e34092e95b6d4705b2a.

Reason for revert:
LUCI Bisection has identified this change as the culprit of a build failure. See the analysis: https://ci.chromium.org/ui/p/chromium/bisection/compile-analysis/b/8746706113493454977

Sample failed build: https://ci.chromium.org/b/8746706113493454977

If this is a false positive, please report it at http://b.corp.google.com/createIssue?component=1199205&description=Analysis%3A+https%3A%2F%2Fchromium-review.googlesource.com%2Fc%2Fchromium%2Fsrc%2F%2B%2F5497157&format=PLAIN&priority=P3&title=Wrongly+blamed+https%3A%2F%2Fci.chromium.org%2Fui%2Fp%2Fchromium%2Fbisection%2Fcompile-analysis%2Fb%2F8746706113493454977&type=BUG

Original change's description:
> Rewrite previously excluded raw_ptr fields
>
> This rewrites pointers to byte buffers that were accidentally skipped by
> the rewriter. In addition to skipping string literals, the rewriter was
> wrongly skipping byte buffers.
>
> DanglingUntriaged-notes: Annotating pre-existing dangling pointers.
> Bug: 331840473
> Change-Id: I1845d17a5edffeeb94150e17afb2166b889f4c9d
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5497157
> Reviewed-by: Arthur Sonzogni <arthursonzogni@chromium.org>
> Owners-Override: Arthur Sonzogni <arthursonzogni@chromium.org>
> Reviewed-by: Frank Liberato <liberato@chromium.org>
> Reviewed-by: Bartek Nowierski <bartekn@chromium.org>
> Commit-Queue: Ali Hijazi <ahijazi@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1306660}
>

Bug: 331840473
Change-Id: Ibea32e36178bd8161e69855ab9194d2f65fba677
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5573454
Bot-Commit: luci-bisection@appspot.gserviceaccount.com <luci-bisection@appspot.gserviceaccount.com>
Commit-Queue: luci-bisection@appspot.gserviceaccount.com <luci-bisection@appspot.gserviceaccount.com>
Owners-Override: luci-bisection@appspot.gserviceaccount.com <luci-bisection@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1306670}


CrOS-Libchrome-Original-Commit: 1c7549731b0de0e41f52b32c7a60ee50c39cf763
diff --git a/base/trace_event/trace_event_impl.h b/base/trace_event/trace_event_impl.h
index f8ef00a..8a2bdce 100644
--- a/base/trace_event/trace_event_impl.h
+++ b/base/trace_event/trace_event_impl.h
@@ -17,7 +17,6 @@
 
 #include "base/base_export.h"
 #include "base/functional/callback.h"
-#include "base/memory/raw_ptr.h"
 #include "base/process/process_handle.h"
 #include "base/strings/string_util.h"
 #include "base/threading/platform_thread.h"
@@ -160,7 +159,7 @@
   // The equivalence is checked with a static_assert() in trace_event_impl.cc.
   const char* scope_ = nullptr;
   unsigned long long id_ = 0u;
-  raw_ptr<const unsigned char> category_group_enabled_ = nullptr;
+  const unsigned char* category_group_enabled_ = nullptr;
   const char* name_ = nullptr;
   StringStorage parameter_copy_storage_;
   TraceArguments args_;