Rename GN source_prereqs to inputs, enhance "desc"

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 62 matching lines @@
   // the public headers list should be empty.
   bool all_headers_public() const { return all_headers_public_; }
   void set_all_headers_public(bool p) { all_headers_public_ = p; }
 
   // When all_headers_public is false, this is the list of public headers. It
   // could be empty which would mean no headers are public.
   const FileList& public_headers() const { return public_headers_; }
   FileList& public_headers() { return public_headers_; }
 
   // Compile-time extra dependencies.
-  const FileList& source_prereqs() const { return source_prereqs_; }
-  FileList& source_prereqs() { return source_prereqs_; }
+  const FileList& inputs() const { return inputs_; }
+  FileList& inputs() { return inputs_; }
 
   // Runtime dependencies.
   const FileList& data() const { return data_; }
   FileList& data() { return data_; }
 
   // Returns true if targets depending on this one should have an order
   // dependency.
   bool hard_dep() const {
     return output_type_ == ACTION ||
            output_type_ == ACTION_FOREACH ||
@@ skipping 69 matching lines @@
   void PullForwardedDependentConfigs();
   void PullRecursiveHardDeps();
 
   OutputType output_type_;
   std::string output_name_;
   std::string output_extension_;
 
   FileList sources_;
   bool all_headers_public_;
   FileList public_headers_;
-  FileList source_prereqs_;
+  FileList inputs_;
   FileList data_;
 
   bool hard_dep_;
 
   // Note that if there are any groups in the deps, once the target is resolved
   // these vectors will list *both* the groups as well as the groups' deps.
   //
   // This is because, in general, groups should be "transparent" ways to add
   // groups of dependencies, so adding the groups deps make this happen with
   // no additional complexity when iterating over a target's deps.
@@ skipping 28 matching lines @@
   // target is marked resolved. This will not include the current target.
   std::set<const Target*> recursive_hard_deps_;
 
   ConfigValues config_values_;  // Used for all binary targets.
   ActionValues action_values_;  // Used for action[_foreach] targets.
 
   DISALLOW_COPY_AND_ASSIGN(Target);
 };
 
 #endif  // TOOLS_GN_TARGET_H_