Don't hold the installed app in BrowserProcessRenderHost, since that's in content layer now. Ext...

chrome/browser/extensions/extension_service.h

Index: chrome/browser/extensions/extension_service.h
===================================================================
--- chrome/browser/extensions/extension_service.h	(revision 82344)
+++ chrome/browser/extensions/extension_service.h	(working copy)
@@ -157,6 +157,13 @@
   // Returns whether the URL is from either a hosted or packaged app.
   bool IsInstalledApp(const GURL& url);
 
+  // Associates a renderer process with the given installed app.
+  void SetInstalledAppForRenderer(const Extension* app, int renderer_child_id);

[Charlie Reis, 2011/04/21 00:25:12]

Let's swap these arguments so it's more like a traditional put(key, value) call.

[jam, 2011/04/21 06:52:19]

Done.

+
+  // If the renderer is hosting an installed app, returns it, otherwise returns
+  // NULL.
+  const Extension* GetInstalledAppForRenderer(int renderer_child_id);
+
   // Attempts to uninstall an extension from a given ExtensionService. Returns
   // true iff the target extension exists.
   static bool UninstallExtensionHelper(ExtensionService* extensions_service,
@@ -562,6 +569,11 @@
   // The map of extension IDs to their runtime data.
   ExtensionRuntimeDataMap extension_runtime_data_;
 
+  // Holds a map between renderer process IDs that are associated with an
+  // installed app and their app.
+  typedef std::map<int, scoped_refptr<const Extension> > InstalledAppMap;
+  InstalledAppMap installed_app_hosts_;
+
   // The full path to the directory where extensions are installed.
   FilePath install_directory_;