Revert 193481 "Simplify ExtensionProcessManager to only load ext..."

trunk/src/chrome/browser/extensions/extension_process_manager.h

Index: trunk/src/chrome/browser/extensions/extension_process_manager.h
===================================================================
--- trunk/src/chrome/browser/extensions/extension_process_manager.h	(revision 195322)
+++ trunk/src/chrome/browser/extensions/extension_process_manager.h	(working copy)
@@ -195,6 +195,11 @@
   // Clears background page data for this extension.
   void ClearBackgroundPageData(const std::string& extension_id);
 
+  // Returns true if loading background pages should be deferred. This is
+  // true if there are no browser windows open and the browser process was
+  // started to show the app launcher.
+  bool DeferLoadingBackgroundHosts() const;
+
   // Contains all active extension-related RenderViewHost instances for all
   // extensions. We also keep a cache of the host's view type, because that
   // information is not accessible at registration/deregistration time.