Changed the extension.connect() API not to broadcast to all tabs. Added a

chrome/browser/extensions/extension_process_manager.h

Index: chrome/browser/extensions/extension_process_manager.h
diff --git a/chrome/browser/extensions/extension_process_manager.h b/chrome/browser/extensions/extension_process_manager.h
index e3d6b76cbb5dd8503050c3e2516480351f296413..d2af74d9f6c55a9bc786cd8fc1f00f7d7c739883 100644
--- a/chrome/browser/extensions/extension_process_manager.h
+++ b/chrome/browser/extensions/extension_process_manager.h
@@ -21,6 +21,7 @@ class ExtensionView;
 #endif
 class GURL;
 class Profile;
+class RenderProcessHost;
 class SiteInstance;
 
 // Manages dynamic state of running Chromium extensions.  There is one instance
@@ -45,13 +46,17 @@ class ExtensionProcessManager : public NotificationObserver {
   // Returns the SiteInstance that the given URL belongs to.
   SiteInstance* GetSiteInstanceForURL(const GURL& url);
 
-  // Register an extension process by |extension_id| and specifying which
+  // Registers an extension process by |extension_id| and specifying which
   // |process_id| it belongs to.
-  void RegisterExtensionProcess(std::string extension_id, int process_id);
+  void RegisterExtensionProcess(const std::string& extension_id,
+                                int process_id);
 
-  // Unregister an extension process with specified |process_id|.
+  // Unregisters an extension process with specified |process_id|.
   void UnregisterExtensionProcess(int process_id);
 
+  // Returns the process that the extension with the given ID is running in.
+  RenderProcessHost* GetExtensionProcess(const std::string& extension_id);
+
   // NotificationObserver:
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,