<webview>: Implement declarativeWebRequest API

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

Index: chrome/browser/extensions/api/declarative/rules_registry.h
diff --git a/chrome/browser/extensions/api/declarative/rules_registry.h b/chrome/browser/extensions/api/declarative/rules_registry.h
index 6c277d38ff61e86a170d6718e977ff25be426523..889961be9f5dcadfba82d90003aa42452df205f4 100644
--- a/chrome/browser/extensions/api/declarative/rules_registry.h
+++ b/chrome/browser/extensions/api/declarative/rules_registry.h
@@ -19,8 +19,6 @@ class DictionaryValue;
 
 namespace extensions {
 
-class RulesRegistry;
-
 // Interface for rule registries.
 //
 // All functions except GetOwnerThread() and the destructor are only called on
@@ -28,10 +26,11 @@ class RulesRegistry;
 class RulesRegistry : public base::RefCountedThreadSafe<RulesRegistry> {
  public:
   typedef extensions::api::events::Rule Rule;
+  typedef std::pair<int, int> WebViewKey;
 
   RulesRegistry(content::BrowserThread::ID owner_thread,
-                const std::string& event_name)
-      : owner_thread_(owner_thread), event_name_(event_name) {}
+                const std::string& event_name,
+                const WebViewKey& webview_key);
 
   // Registers |rules|, owned by |extension_id| to this RulesRegistry.
   // If a concrete RuleRegistry does not support some of the rules,
@@ -96,8 +95,13 @@ class RulesRegistry : public base::RefCountedThreadSafe<RulesRegistry> {
   // The name of the event with which rules are registered.
   const std::string& event_name() const { return event_name_; }
 
+  // The key that identifies the webview (or tabs) in which these rules apply.
+  const WebViewKey& webview_key() const {
+    return webview_key_;
+  }
+
  protected:
-  virtual ~RulesRegistry() {}
+  virtual ~RulesRegistry();
 
  private:
   friend class base::RefCountedThreadSafe<RulesRegistry>;
@@ -108,6 +112,9 @@ class RulesRegistry : public base::RefCountedThreadSafe<RulesRegistry> {
   // The name of the event with which rules are registered.
   const std::string event_name_;
 
+  // The key that identifies the context in which these rules apply.
+  WebViewKey webview_key_;
+
   DISALLOW_COPY_AND_ASSIGN(RulesRegistry);
 };