Add support for Mac/iOS application bundles to GN tool.

tools/gn/config_values.h

Index: tools/gn/config_values.h
diff --git a/tools/gn/config_values.h b/tools/gn/config_values.h
index 823f1df9fc4b4a4f0359c8968a3d310e34790689..4a09ae3a80a1e8c5cfb6f5246c4c5e1252c46aa7 100644
--- a/tools/gn/config_values.h
+++ b/tools/gn/config_values.h
@@ -29,6 +29,9 @@ class ConfigValues {
 #define DIR_VALUES_ACCESSOR(name) \
     const std::vector<SourceDir>& name() const { return name##_; } \
     std::vector<SourceDir>& name() { return name##_; }
+#define SRC_VALUES_ACCESSOR(name) \
+    const std::vector<SourceFile>& name() const { return name##_; } \

[brettw, 2016/01/20 22:23:17]

Putting this on config values seems wrong to me. No other source or data is on
here. Configs are really for settings that need to be applied to multiple
targets. I don't think that's the case here, and that bundle data is really
associated with a single target and propagated through the dependency tree.

If my understanding is correct, we should put the bundle data on the Target like
data is, and to collect the sources to it, iterate the dependency tree and
collect the files (as we do for data, see runtime_deps.cc).

[sdefresne, 2016/01/21 22:00:56]

Done. Code is much cleaner. Thanks.

+    std::vector<SourceFile>& name() { return name##_; }
 
   STRING_VALUES_ACCESSOR(asmflags)
   STRING_VALUES_ACCESSOR(cflags)
@@ -40,10 +43,12 @@ class ConfigValues {
   DIR_VALUES_ACCESSOR   (include_dirs)
   STRING_VALUES_ACCESSOR(ldflags)
   DIR_VALUES_ACCESSOR   (lib_dirs)
+  SRC_VALUES_ACCESSOR   (bundle_data)
   // If you add a new one, be sure to update AppendValues().
 
 #undef STRING_VALUES_ACCESSOR
 #undef DIR_VALUES_ACCESSOR
+#undef SRC_VALUES_ACCESSOR
 
   const std::vector<LibFile>& libs() const { return libs_; }
   std::vector<LibFile>& libs() { return libs_; }
@@ -76,6 +81,7 @@ class ConfigValues {
   std::vector<std::string> ldflags_;
   std::vector<SourceDir>   lib_dirs_;
   std::vector<LibFile>     libs_;
+  std::vector<SourceFile>  bundle_data_;
   // If you add a new one, be sure to update AppendValues().
 
   std::string precompiled_header_;