Files that use functions from `string_util.h` should include that header
directly instead of relying on transient inclusions.
This is a mechanical change using this script:
```sh
remove_header_if_unused() {
files=$(git grep -l "base/strings/string_util.h")
for file in $files; do
if ! git grep -qE "base::MakeStringPiece|base::MakeWStringView|base::ToLowerASCII|base::ToUpperASCII|base::CompareCaseInsensitiveASCII|base::EqualsCaseInsensitiveASCII|base::EmptyString|base::RemoveChars|base::ReplaceChars|base::TrimPositions|base::TrimString|base::TruncateUTF8ToByteSize|base::TrimWhitespace|base::CollapseWhitespace|base::ContainsOnlyChars|base::IsStringUTF8|base::IsStringASCII|base::EqualsASCII|base::CompareCase|base::StartsWith|base::EndsWith|base::RemovePrefix|base::RemoveSuffix|base::IsAscii|base::IsUnicodeControl|base::IsHexDigit|base::IsUnicodeWhitespace|base::FormatBytesUnlocalized|base::ReplaceFirstSubstringAfterOffset|base::ReplaceSubstringsAfterOffset|base::WriteInto|base::JoinString|base::ReplaceStringPlaceholders|base::MakeStringViewWithNulChars" "$file"; then
sed -i '/base\/strings\/string_util.h/d' "$file"
echo "Removed 'base/strings/string_util.h' from $file"
fi
done
}
add_header_if_needed() {
files=$(git grep -lE "base::MakeStringPiece|base::MakeWStringView|base::ToLowerASCII|base::ToUpperASCII|base::CompareCaseInsensitiveASCII|base::EqualsCaseInsensitiveASCII|base::EmptyString|base::RemoveChars|base::ReplaceChars|base::TrimPositions|base::TrimString|base::TruncateUTF8ToByteSize|base::TrimWhitespace|base::CollapseWhitespace|base::ContainsOnlyChars|base::IsStringUTF8|base::IsStringASCII|base::EqualsASCII|base::CompareCase|base::StartsWith|base::EndsWith|base::RemovePrefix|base::RemoveSuffix|base::IsAscii|base::IsUnicodeControl|base::IsHexDigit|base::IsUnicodeWhitespace|base::FormatBytesUnlocalized|base::ReplaceFirstSubstringAfterOffset|base::ReplaceSubstringsAfterOffset|base::WriteInto|base::JoinString|base::ReplaceStringPlaceholders|base::MakeStringViewWithNulChars")
for file in $files; do
../tools/add_header.py --header '"base/strings/string_util.h"' "$file"
done
}
remove_header_if_unused
add_header_if_needed
```
Resolves https://github.com/brave/brave-browser/issues/46559
cdesouza-chromium
8df5afaa2f