Reland: Communicate ExtensionSettings policy to renderers

chrome/browser/extensions/extension_management_internal.cc

Index: chrome/browser/extensions/extension_management_internal.cc
diff --git a/chrome/browser/extensions/extension_management_internal.cc b/chrome/browser/extensions/extension_management_internal.cc
index a2596ae6f4a73d2a9c4772dece0dfeb2c26e2e63..cab0415bc77a91f294e7a2f86f56377592838e5d 100644
--- a/chrome/browser/extensions/extension_management_internal.cc
+++ b/chrome/browser/extensions/extension_management_internal.cc
@@ -115,6 +115,14 @@ bool IndividualSettings::Parse(const base::DictionaryValue* dict,
     // Get the list of URLPatterns.
     if (dict->GetListWithoutPathExpansion(key,
                                           &host_list_value)) {
+      if (host_list_value->GetSize() >
+          schema_constants::kMaxItemsURLPatternSet) {
+        LOG(WARNING) << "Exceeded maximum number of URL match patterns ("
+                     << schema_constants::kMaxItemsURLPatternSet
+                     << ") for attribute '" << key << "'";
+        return false;
+      }
+
       out_value->ClearPatterns();
       const int extension_scheme_mask =
           URLPattern::GetValidSchemeMaskForExtensions();
@@ -122,7 +130,8 @@ bool IndividualSettings::Parse(const base::DictionaryValue* dict,
         std::string unparsed_str;
         host_list_value->GetString(i, &unparsed_str);
         URLPattern pattern = URLPattern(extension_scheme_mask);
-        URLPattern::ParseResult parse_result = pattern.Parse(unparsed_str);
+        URLPattern::ParseResult parse_result = pattern.Parse(
+            unparsed_str, URLPattern::ALLOW_WILDCARD_FOR_EFFECTIVE_TLD);
         if (parse_result != URLPattern::PARSE_SUCCESS) {
           LOG(WARNING) << kMalformedPreferenceWarning;
           LOG(WARNING) << "Invalid URL pattern '" + unparsed_str +