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

chrome/browser/extensions/api/declarative/rules_registry_service.h

Index: chrome/browser/extensions/api/declarative/rules_registry_service.h
diff --git a/chrome/browser/extensions/api/declarative/rules_registry_service.h b/chrome/browser/extensions/api/declarative/rules_registry_service.h
index 37bb8c0fbd3c6971398f478cc353a9e0fcf0e1f1..3ed7a4d929bc633203ba19be7c78cd6474e299e5 100644
--- a/chrome/browser/extensions/api/declarative/rules_registry_service.h
+++ b/chrome/browser/extensions/api/declarative/rules_registry_service.h
@@ -14,6 +14,7 @@
 #include "base/memory/scoped_vector.h"
 #include "base/scoped_observer.h"
 #include "chrome/browser/extensions/api/declarative/rules_registry.h"
+#include "chrome/browser/extensions/api/declarative_content/content_rules_registry.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
@@ -28,7 +29,6 @@ class NotificationSource;
 }
 
 namespace extensions {
-class ContentRulesRegistry;
 class ExtensionRegistry;
 class RulesRegistry;
 class RulesRegistryStorageDelegate;
@@ -84,11 +84,12 @@ class RulesRegistryService : public BrowserContextKeyedAPI,
       const WebViewKey& webview_key,
       const std::string& event_name);
 
-  // Accessors for each type of rules registry.
-  ContentRulesRegistry* content_rules_registry() const {
-    CHECK(content_rules_registry_);
-    return content_rules_registry_;
+  // Accessors for content rules registries.
+  ContentRulesRegistryMap& content_rules_registry_map() {
+    return content_rules_registry_map_;
   }
+  ContentRulesRegistry* GetContentRulesRegistry(
+      const std::string& event_name);
 
   // Removes all rules registries of a given webview embedder process ID.
   void RemoveWebViewRulesRegistries(int process_id);
@@ -139,9 +140,9 @@ class RulesRegistryService : public BrowserContextKeyedAPI,
   // We own the parts of the registries which need to run on the UI thread.
   ScopedVector<RulesCacheDelegate> cache_delegates_;
 
-  // Weak pointer into rule_registries_ to make it easier to handle content rule
-  // conditions.
-  ContentRulesRegistry* content_rules_registry_;
+  // Collection of content rule registries to make it easier to handle content
+  // rule conditions.
+  ContentRulesRegistryMap content_rules_registry_map_;
 
   content::NotificationRegistrar registrar_;