Use jinja2 for make_runtime_features and make_internal_runtime_flags

Source/core/scripts/template_expander.py

Index: Source/core/scripts/template_expander.py
diff --git a/Source/core/core.gyp/scripts/supplemental_idl_files.py b/Source/core/scripts/template_expander.py
similarity index 75%
copy from Source/core/core.gyp/scripts/supplemental_idl_files.py
copy to Source/core/scripts/template_expander.py
index eaf0270ac9f6a46637b6196233f09793d855e4b8..e09826c5a6f5a0a502c3ff3b8ccd730a6dcfa322 100644
--- a/Source/core/core.gyp/scripts/supplemental_idl_files.py
+++ b/Source/core/scripts/template_expander.py
@@ -1,5 +1,3 @@
-#!/usr/bin/python
-#
 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -28,18 +26,18 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-"""This file returns a list of all the IDL files that contain a partial interface."""
-
-import re
+import os
 import sys
 
-partial_interface_regex = re.compile(r'partial\s+interface\s+(\w+).+\]', re.M | re.S)
+_curdir = os.path.dirname(os.path.realpath(__file__))
+# jinja2 is in chromium's third_party directory
+sys.path.append(os.path.join(_curdir, *([os.pardir] * 4)))
+
 
-def DoMain(filenames):
-    partial_files = set()
-    for filename in filenames:
-        with open(filename) as f:
-            match = re.search(partial_interface_regex, f.read())
-            if match:
-                partial_files.add(filename)
-    return '\n'.join(partial_files)
+def applytemplate(pathtotemplate, params):

[abarth-chromium, 2013/05/10 16:18:40]

applytemplate -> apply_template
pathtotemplate -> path_to_template

(We use PEP8 style, except for the line length limit)

+    import jinja2
+    dirname, basename = os.path.split(pathtotemplate)
+    pathtotemplates = os.path.join(_curdir, "templates")
+    env = jinja2.Environment(loader=jinja2.FileSystemLoader([dirname, pathtotemplates]))
+    template = env.get_template(basename)
+    return template.render(params)