Move several Cord::InlineRep methods that are marked inline to the header

PiperOrigin-RevId: 928599458
Change-Id: Ie9e4f3ac9be1591c0aa1555333fb0240f6284d14

absl/strings/cord.cc

diff --git a/absl/strings/cord.cc b/absl/strings/cord.cc
index d15b5c3..f2912d1 100644
--- a/absl/strings/cord.cc
+++ b/absl/strings/cord.cc
@@ -163,35 +163,6 @@
 // --------------------------------------------------------------------
 // Cord::InlineRep functions
 
-inline void Cord::InlineRep::set_data(const char* absl_nullable data,
-                                      size_t n) {
-  static_assert(kMaxInline == 15, "set_data is hard-coded for a length of 15");
-  assert(data != nullptr || n == 0);
-  data_.set_inline_data(data, n);
-}
-
-inline char* absl_nonnull Cord::InlineRep::set_data(size_t n) {
-  assert(n <= kMaxInline);
-  ResetToEmpty();
-  set_inline_size(n);
-  return data_.as_chars();
-}
-
-inline void Cord::InlineRep::reduce_size(size_t n) {
-  size_t tag = inline_size();
-  assert(tag <= kMaxInline);
-  assert(tag >= n);
-  tag -= n;
-  memset(data_.as_chars() + tag, 0, n);
-  set_inline_size(tag);
-}
-
-inline void Cord::InlineRep::remove_prefix(size_t n) {
-  cord_internal::SmallMemmove(data_.as_chars(), data_.as_chars() + n,
-                              inline_size() - n);
-  reduce_size(n);
-}
-
 // Returns `rep` converted into a CordRepBtree.
 // Directly returns `rep` if `rep` is already a CordRepBtree.
 static CordRepBtree* absl_nonnull ForceBtree(CordRep* rep) {

absl/strings/cord.h

diff --git a/absl/strings/cord.h b/absl/strings/cord.h
index f722b3f..22193b7 100644
--- a/absl/strings/cord.h
+++ b/absl/strings/cord.h
@@ -1230,6 +1230,35 @@
   return is_tree() ? nullptr : data_.as_chars();
 }
 
+inline char* absl_nonnull Cord::InlineRep::set_data(size_t n) {
+  assert(n <= kMaxInline);
+  ResetToEmpty();
+  set_inline_size(n);
+  return data_.as_chars();
+}
+
+inline void Cord::InlineRep::set_data(const char* absl_nullable data,
+                                      size_t n) {
+  static_assert(kMaxInline == 15, "set_data is hard-coded for a length of 15");
+  assert(data != nullptr || n == 0);
+  data_.set_inline_data(data, n);
+}
+
+inline void Cord::InlineRep::reduce_size(size_t n) {
+  size_t tag = inline_size();
+  assert(tag <= kMaxInline);
+  assert(tag >= n);
+  tag -= n;
+  memset(data_.as_chars() + tag, 0, n);
+  set_inline_size(tag);
+}
+
+inline void Cord::InlineRep::remove_prefix(size_t n) {
+  cord_internal::SmallMemmove(data_.as_chars(), data_.as_chars() + n,
+                              inline_size() - n);
+  reduce_size(n);
+}
+
 inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
   assert(!data_.is_tree());
   return data_.as_chars();