[SafeBrowsing] Update SafeBrowsingUI import statements

There has been an effort to componentize the SafeBrowsing WebUI files so
they can be used across platforms. In that effort, the
WebUIInfoSingleton file has be migrated to its own file. There are
numerous files within the Desktop and Android codebase that rely on the
WebUIInfoSingleton class. However, these files were mistakenly importing
the safe_browsing_ui.h for this dependency.

A future CL will remove the SafeBrowsingUIHandler class from the
SafeBrowsingUI class. When this happens the WebUIInfoSingleton class
will no longer be imported into SafeBrowsingUI. As a result, these
Desktop and Android file's reliance on importing WebUIInfoSinglegton
through the SafeBrowsingUI will be broken.

This CL amends the incorrect import statements by replacing the
importation of safe_browsing_ui.h with web_ui_info_singleton.h

Bug: 427719727
Change-Id: Ifeb584325296eda69b0ce5c339aa97fde1c6f44c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6927490
Reviewed-by: Sébastien Lalancette <seblalancette@chromium.org>
Commit-Queue: Daniel White <danieltwhite@google.com>
Reviewed-by: David Trainor <dtrainor@chromium.org>
Reviewed-by: thefrog <thefrog@chromium.org>
Reviewed-by: Nate Fischer <ntfschr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1514914}