[GN]: Support for loadable modules

tools/gn/target.h

 // 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.
 
 #ifndef TOOLS_GN_TARGET_H_
 #define TOOLS_GN_TARGET_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 17 matching lines @@
 class Token;
 class Toolchain;
 
 class Target : public Item {
  public:
   enum OutputType {
     UNKNOWN,
     GROUP,
     EXECUTABLE,
     SHARED_LIBRARY,
+    LOADABLE_MODULE,
     STATIC_LIBRARY,
     SOURCE_SET,
     COPY_FILES,
     ACTION,
     ACTION_FOREACH,
   };
 
   enum DepsIterationType {
     DEPS_ALL,  // Iterates through all public, private, and data deps.
     DEPS_LINKED,  // Iterates through all non-data dependencies.
@@ skipping 270 matching lines @@
 
   // Output files. Empty until the target is resolved.
   std::vector<OutputFile> computed_outputs_;
   OutputFile link_output_file_;
   OutputFile dependency_output_file_;
 
   DISALLOW_COPY_AND_ASSIGN(Target);
 };
 
 #endif  // TOOLS_GN_TARGET_H_