Add lifetimebound to absl::StripAsciiWhitespace

PiperOrigin-RevId: 728581017
Change-Id: I416b595ccf76c8fdc90cf7feb3d3bb27d502b013

absl/strings/ascii.h

diff --git a/absl/strings/ascii.h b/absl/strings/ascii.h
index d9317eb..982e86f 100644
--- a/absl/strings/ascii.h
+++ b/absl/strings/ascii.h
@@ -237,7 +237,7 @@
 // Returns absl::string_view with whitespace stripped from the beginning of the
 // given string_view.
 ABSL_MUST_USE_RESULT inline absl::string_view StripLeadingAsciiWhitespace(
-    absl::string_view str) {
+    absl::string_view str ABSL_ATTRIBUTE_LIFETIME_BOUND) {
   auto it = std::find_if_not(str.begin(), str.end(), absl::ascii_isspace);
   return str.substr(static_cast<size_t>(it - str.begin()));
 }
@@ -251,7 +251,7 @@
 // Returns absl::string_view with whitespace stripped from the end of the given
 // string_view.
 ABSL_MUST_USE_RESULT inline absl::string_view StripTrailingAsciiWhitespace(
-    absl::string_view str) {
+    absl::string_view str ABSL_ATTRIBUTE_LIFETIME_BOUND) {
   auto it = std::find_if_not(str.rbegin(), str.rend(), absl::ascii_isspace);
   return str.substr(0, static_cast<size_t>(str.rend() - it));
 }
@@ -265,7 +265,7 @@
 // Returns absl::string_view with whitespace stripped from both ends of the
 // given string_view.
 ABSL_MUST_USE_RESULT inline absl::string_view StripAsciiWhitespace(
-    absl::string_view str) {
+    absl::string_view str ABSL_ATTRIBUTE_LIFETIME_BOUND) {
   return StripTrailingAsciiWhitespace(StripLeadingAsciiWhitespace(str));
 }