Move EndsWith to base namespace.

tools/gn/ninja_binary_target_writer.cc

Index: tools/gn/ninja_binary_target_writer.cc
diff --git a/tools/gn/ninja_binary_target_writer.cc b/tools/gn/ninja_binary_target_writer.cc
index 7a611dbdd015303ae21485dbf68f8218aeccc0cf..680c0d9db459ac6366cfaef01448e0d2d106c992 100644
--- a/tools/gn/ninja_binary_target_writer.cc
+++ b/tools/gn/ninja_binary_target_writer.cc
@@ -336,7 +336,8 @@ void NinjaBinaryTargetWriter::WriteLibs() {
   const OrderedSet<std::string> all_libs = target_->all_libs();
   const std::string framework_ending(".framework");
   for (size_t i = 0; i < all_libs.size(); i++) {
-    if (settings_->IsMac() && EndsWith(all_libs[i], framework_ending, false)) {
+    if (settings_->IsMac() &&
+        base::EndsWith(all_libs[i], framework_ending, false)) {
       // Special-case libraries ending in ".framework" on Mac. Add the
       // -framework switch and don't add the extension to the output.
       out_ << " -framework ";