commit 02b452c4983f73b2a02e8e69ab6e8e85c8412700
author Alex Gough <ajgo@chromium.org> Wed Nov 26 18:44:47 2025
committer Chromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com> Wed Nov 26 18:44:47 2025
tree f34d454c3aeff3570ab6b9fd2115fd2173217d71
parent ea5a66a857254e4b60fa3d3c964646158594abf6

Remove std::hex and use base::StringPrintf in Windows stacktraces

Before this CL, if an unlisted exception code was encountered in
stack_trace_win.cc it was output using `std:err << std::hex << code`. As
std::hex is sticky, this meant that later line numbers (also DWORDS)
would also be output as hex, confusing some Chromium developers,
especially as this did not always happen.

This CL removes the use of `std::hex` and adds calls to
base::StringPrintf where line numbers, addresses or offsets are output
during stack dumping.

New output:

```
[ RUN      ] TakeHandleOfTypeDeathTest.CrazyHandle
Received fatal exception 0xC0000008
        KiRaiseUserExceptionDispatcher [0x7ffbc0ca5dba+3a]
        base::win::GetObjectTypeName [0x7ffb5af5d534+f4] (D:\chromium\src\base\win\win_util.cc:1188)
        base::win::TakeHandleOfType [0x7ffb5af27688+88] (D:\chromium\src\base\win\scoped_handle.cc:70)
```

Bug: 448680449
Change-Id: Ide6c3b54d57ceaf63098e0e12db72934e7ca39a8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7206137
Reviewed-by: Will Harris <wfh@chromium.org>
Commit-Queue: Alex Gough <ajgo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1550632}