Fixing wrong extension ID in Activity Log entries.

Source/bindings/v8/V8DOMActivityLogger.h

Index: Source/bindings/v8/V8DOMActivityLogger.h
diff --git a/Source/bindings/v8/V8DOMActivityLogger.h b/Source/bindings/v8/V8DOMActivityLogger.h
index 55f28d10d2bd7de22bc3e1c4cdbc7df4fe232165..35a85e6cdace11e49ef24b26c25797848f8f5e55 100644
--- a/Source/bindings/v8/V8DOMActivityLogger.h
+++ b/Source/bindings/v8/V8DOMActivityLogger.h
@@ -37,6 +37,8 @@
 
 namespace WebCore {
 
+class KURL;
+
 class V8DOMActivityLogger {
 public:
     virtual ~V8DOMActivityLogger() { }
@@ -47,9 +49,20 @@ public:
     virtual void logMethod(const String& apiName, int argc, const v8::Handle<v8::Value>* argv) { }
 
     // Associates a logger with the world identified by worldId (worlId may be 0
-    // identifying the main world).
-    static void setActivityLogger(int worldId, PassOwnPtr<V8DOMActivityLogger>);
-    static V8DOMActivityLogger* activityLogger(int worldId);
+    // identifying the main world) and extension ID. Extension ID is used to
+    // identify a logger for main world only (worldId == 0). If the world is not
+    // a main world, an extension ID is ignored.
+    //
+    // A renderer process may host multiple extensions when the browser hits the
+    // renderer process limit. In such case, we assign multiple extensions to
+    // the same main world of a renderer process. In order to distinguish the
+    // extensions and their activity loggers in the main world, we require an
+    // extension ID. Otherwise, extension activities may be logged under
+    // a wrong extension ID.
+    static void setActivityLogger(int worldId, const String&, PassOwnPtr<V8DOMActivityLogger>);
+    static V8DOMActivityLogger* activityLogger(int worldId, const String&);
+    static V8DOMActivityLogger* activityLogger(int worldId, const KURL&);
+
 };
 
 } // namespace WebCore