Prepare declarativeContent API for new script injection feature. Added Javascript types and functio…

chrome/browser/extensions/api/declarative_content/content_rules_registry.cc

Index: chrome/browser/extensions/api/declarative_content/content_rules_registry.cc
diff --git a/chrome/browser/extensions/api/declarative_content/content_rules_registry.cc b/chrome/browser/extensions/api/declarative_content/content_rules_registry.cc
index 7b379c1a67f2eeade2c708a517bd25de1713f5a7..8e36f26e67c8b5e0bbb69595709efeb9ae7af24d 100644
--- a/chrome/browser/extensions/api/declarative_content/content_rules_registry.cc
+++ b/chrome/browser/extensions/api/declarative_content/content_rules_registry.cc
@@ -24,12 +24,16 @@ using url_matcher::URLMatcherConditionSet;
 namespace extensions {
 
 ContentRulesRegistry::ContentRulesRegistry(Profile* profile,
+                                           const std::string& event_name,
+                                           const WatchedPagesRecipient
+                                           watched_pages_recipient,
                                            RulesCacheDelegate* cache_delegate)
     : RulesRegistry(profile,
-                    declarative_content_constants::kOnPageChanged,
+                    event_name,
                     content::BrowserThread::UI,
                     cache_delegate,
-                    WebViewKey(0, 0)) {
+                    WebViewKey(0, 0)),
+      watched_pages_recipient_(watched_pages_recipient) {
   extension_info_map_ = ExtensionSystem::Get(profile)->info_map();
 
   registrar_.Add(this, content::NOTIFICATION_RENDERER_PROCESS_CREATED,
@@ -300,7 +304,10 @@ void ContentRulesRegistry::UpdateConditionCache() {
 
 void ContentRulesRegistry::InstructRenderProcess(
     content::RenderProcessHost* process) {
-  process->Send(new ExtensionMsg_WatchPages(watched_css_selectors_));
+  process->Send(
+      new ExtensionMsg_WatchPages(event_name(),
+                                  watched_pages_recipient_,
+                                  watched_css_selectors_));
 }
 
 bool ContentRulesRegistry::IsEmpty() const {