Site Settings: Implement dialog for adding site exceptions.

chrome/browser/ui/webui/settings/site_settings_handler.cc

Index: chrome/browser/ui/webui/settings/site_settings_handler.cc
diff --git a/chrome/browser/ui/webui/settings/site_settings_handler.cc b/chrome/browser/ui/webui/settings/site_settings_handler.cc
index 23508276dc880007bd0b8e252a67175498fadb51..f77c85a8d502310be0c1d3de86118ed406fc8056 100644
--- a/chrome/browser/ui/webui/settings/site_settings_handler.cc
+++ b/chrome/browser/ui/webui/settings/site_settings_handler.cc
@@ -62,6 +62,10 @@ void SiteSettingsHandler::RegisterMessages() {
       "setCategoryPermissionForOrigin",
       base::Bind(&SiteSettingsHandler::HandleSetCategoryPermissionForOrigin,
                  base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      "isPatternValid",
+      base::Bind(&SiteSettingsHandler::HandleIsPatternValid,
+                 base::Unretained(this)));
 }
 
 void SiteSettingsHandler::OnGetUsageInfo(
@@ -257,4 +261,18 @@ void SiteSettingsHandler::HandleSetCategoryPermissionForOrigin(
       content_type, "", setting);
 }
 
+void SiteSettingsHandler::HandleIsPatternValid(
+    const base::ListValue* args) {
+  CHECK_EQ(2U, args->GetSize());
+  const base::Value* callback_id;
+  CHECK(args->Get(0, &callback_id));
+  std::string pattern_string;
+  CHECK(args->GetString(1, &pattern_string));
+
+  ContentSettingsPattern pattern =
+      ContentSettingsPattern::FromString(pattern_string);
+  ResolveJavascriptCallback(
+      *callback_id, base::FundamentalValue(pattern.IsValid()));
+}
+
 }  // namespace settings