GN: Return array from pkgconfig wrapper

tools/gn/ninja_binary_target_writer.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "tools/gn/ninja_binary_target_writer.h"
 
 #include <set>
 
 #include "base/strings/string_util.h"
 #include "tools/gn/config_values_extractors.h"
 #include "tools/gn/err.h"
 #include "tools/gn/escape.h"
 #include "tools/gn/string_utils.h"
 
 namespace {
 
 // Returns the proper escape options for writing compiler and linker flags.
 EscapeOptions GetFlagOptions() {
   EscapeOptions opts;
-  opts.mode = ESCAPE_NINJA;
-
-  // Some flag strings are actually multiple flags that expect to be just
-  // added to the command line. We assume that quoting is done by the
-  // buildfiles if it wants such things quoted.
-  opts.inhibit_quoting = true;
-
+  opts.mode = ESCAPE_NINJA_SHELL;
   return opts;
 }
 
 struct DefineWriter {
   DefineWriter() {
-    options.mode = ESCAPE_SHELL;
+    options.mode = ESCAPE_NINJA_SHELL;
   }
 
   void operator()(const std::string& s, std::ostream& out) const {
     out << " -D";
     EscapeStringToStream(out, s, options);
   }
 
   EscapeOptions options;
 };
 
@@ skipping 292 matching lines @@
     // Data files.
     const std::vector<SourceFile>& data = target_->data();
     for (size_t i = 0; i < data.size(); i++) {
       out_ << " ";
       path_output_.WriteFile(out_, data[i]);
     }
   }
 
   out_ << std::endl;
 }