[Minibranch] Revert "[url_fixer] Use string_view instead of const string parameter."

This reverts commit 84c0276cc6f49fd047fb763efade9f4df3de4f22.

Reason for revert: The Suspect CL
https://chromium-review.googlesource.com/q/I06fe9bd459d516508bea2ba60434b1e1ccedfac8
is highly likely the cause of the crash. Please see the crash report
http://crash/3b8cc7a091742d56. Rebase the Revert CL on top of main
branch with conflicts allowed option to prevent false positive merge
conflicts.

Original change's description:
> [url_fixer] Use string_view instead of const string parameter.
>
> This allows avoiding unnecessary string copies. `.substr()`,
> `.remove_prefix()`, and `.remove_suffix()` on string_views just update
> the view boundaries instead of making string copies or changing memory.
>
> Low-Coverage-Reason: TRIVIAL_CHANGE to prefs_util.cc
>
> Change-Id: I06fe9bd459d516508bea2ba60434b1e1ccedfac8
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7363419
> Reviewed-by: Colin Blundell <blundell@chromium.org>
> Commit-Queue: Jeffrey Yu <yuje@chromium.org>
> Reviewed-by: Julian Pastarmov <pastarmovj@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1565047}

(cherry picked from commit 985ddb3bce02c3bbf7755fbc36fd961c165fb92e)

Bug: 474893357, 483672730
Change-Id: I57161f902551a209617ff141d9a9d64e503e1eea
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7430079
Auto-Submit: Jeffrey Yu <yuje@chromium.org>
Reviewed-by: Colin Blundell <blundell@chromium.org>
Reviewed-by: Julian Pastarmov <pastarmovj@chromium.org>
Commit-Queue: Julian Pastarmov <pastarmovj@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1568341}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7566293
Commit-Queue: Krishna Govind <govind@chromium.org>
Owners-Override: Krishna Govind <govind@chromium.org>
Reviewed-by: Krishna Govind <govind@chromium.org>
Reviewed-by: Harry Souders <harrysouders@google.com>
Cr-Commit-Position: refs/branch-heads/7632_45@{#3}
Cr-Branched-From: 7ad2aeb6be38786b2bf653d667d3df01e68d3c40-refs/branch-heads/7632@{#1825}
Cr-Branched-From: 0bbdf2913883391365383b0a5dfe7bf9fd1a5213-refs/heads/main@{#1568190}