Remove WebViewKey in rules registry.

extensions/browser/api/declarative/rules_registry.cc

Index: extensions/browser/api/declarative/rules_registry.cc
diff --git a/extensions/browser/api/declarative/rules_registry.cc b/extensions/browser/api/declarative/rules_registry.cc
index 68aa434682fd610c93418b4362a2e9efe19595c6..5e81ce5b53bfb40caae6e943b9039352496c765c 100644
--- a/extensions/browser/api/declarative/rules_registry.cc
+++ b/extensions/browser/api/declarative/rules_registry.cc
@@ -73,11 +73,11 @@ RulesRegistry::RulesRegistry(content::BrowserContext* browser_context,
                              const std::string& event_name,
                              content::BrowserThread::ID owner_thread,
                              RulesCacheDelegate* cache_delegate,
-                             const WebViewKey& webview_key)
+                             int rules_registry_id)
     : browser_context_(browser_context),
       owner_thread_(owner_thread),
       event_name_(event_name),
-      webview_key_(webview_key),
+      rules_registry_id_(rules_registry_id),
       ready_(/*signaled=*/!cache_delegate),  // Immediately ready if no cache
                                              // delegate to wait for.
       last_generated_rule_identifier_id_(0),
@@ -200,7 +200,6 @@ void RulesRegistry::GetRules(const std::string& extension_id,
 void RulesRegistry::GetAllRules(const std::string& extension_id,
                                 std::vector<linked_ptr<Rule> >* out) {
   DCHECK_CURRENTLY_ON(owner_thread());
-
   for (RulesDictionary::const_iterator i = rules_.begin();
       i != rules_.end(); ++i) {
     const RulesDictionaryKey& key = i->first;