[MD settings] i18n template replacements in shared HTML resources

ui/base/template_expressions.h

Index: ui/base/template_expressions.h
diff --git a/ui/base/template_expressions.h b/ui/base/template_expressions.h
index 2531d96af20cea2a88c907d579e19e88c6263556..ae52aa661be1e590af2e5b974fc03778b90a0e7d 100644
--- a/ui/base/template_expressions.h
+++ b/ui/base/template_expressions.h
@@ -14,11 +14,22 @@
 #include "base/strings/string_piece.h"
 #include "ui/base/ui_base_export.h"
 
+namespace base {
+class DictionaryValue;
+}
+
 namespace ui {
 
 // Map of strings for template replacement in |ReplaceTemplateExpressions|.
 typedef std::map<const std::string, std::string> TemplateReplacements;
 
+// Convert a dictionary to a replacement map. This helper function is to assist
+// migration to using TemplateReplacements directly (which is preferred).
+// TODO(dschuyler): remove this function by using TemplateReplacements directly.
+UI_BASE_EXPORT void TemplateReplacementsFromDictionaryValue(
+    const base::DictionaryValue& dictionary,
+    TemplateReplacements* replacements);
+
 // Replace $i18n*{foo} in the format string with the value for the foo key in
 // |subst|.  If the key is not found in the |substitutions| that item will
 // be unaltered.