Take extensions out of Profile into a profile-keyed service, ExtensionSystem.

chrome/browser/profiles/profile.h

Index: chrome/browser/profiles/profile.h
diff --git a/chrome/browser/profiles/profile.h b/chrome/browser/profiles/profile.h
index 3f6f5f4be408f1dabc8b429f5534fc6282896404..67c53b25a7d0fdfe28c2442bffa8d9b72dea4069 100644
--- a/chrome/browser/profiles/profile.h
+++ b/chrome/browser/profiles/profile.h
@@ -15,7 +15,6 @@
 #include "base/logging.h"
 #include "chrome/browser/net/preconnect.h" // TODO: remove this.
 #include "chrome/browser/net/pref_proxy_config_tracker.h"
-#include "chrome/common/extensions/extension_constants.h"
 #include "content/public/browser/browser_context.h"
 
 class AutocompleteClassifier;
@@ -23,10 +22,8 @@ class BookmarkModel;
 class ChromeAppCacheService;
 class ChromeURLDataManager;
 class Extension;
-class ExtensionDevToolsManager;
 class ExtensionEventRouter;
-class ExtensionInfoMap;
-class ExtensionMessageService;
+class ExtensionPrefValueMap;
 class ExtensionProcessManager;
 class ExtensionService;
 class ExtensionSpecialStoragePolicy;
@@ -223,28 +220,32 @@ class Profile : public content::BrowserContext {
   // that this method is called.
   virtual VisitedLinkMaster* GetVisitedLinkMaster() = 0;
 
+  // Accessor. The instance is created upon first access.
+  // TODO(yoz): make this a ProfileKeyedService.
+  virtual ExtensionPrefValueMap* GetExtensionPrefValueMap() = 0;
+
+  // DEPRECATED. Instead, use ExtensionSystemFactory::extension_service().
   // Retrieves a pointer to the ExtensionService associated with this
   // profile. The ExtensionService is created at startup.
+  // TODO(yoz): remove this accessor (bug 104095).
   virtual ExtensionService* GetExtensionService() = 0;
 
+  // DEPRECATED. Instead, use ExtensionSystemFactory::user_script_master().
   // Retrieves a pointer to the UserScriptMaster associated with this
   // profile.  The UserScriptMaster is lazily created the first time
   // that this method is called.
+  // TODO(yoz): remove this accessor (bug 104095).
   virtual UserScriptMaster* GetUserScriptMaster() = 0;
 
-  // Retrieves a pointer to the ExtensionDevToolsManager associated with this
-  // profile.  The instance is created at startup.
-  virtual ExtensionDevToolsManager* GetExtensionDevToolsManager() = 0;
-
+  // DEPRECATED. Instead, use ExtensionSystemFactory::process_manager().
   // Retrieves a pointer to the ExtensionProcessManager associated with this
   // profile.  The instance is created at startup.
+  // TODO(yoz): remove this accessor (bug 104095).
   virtual ExtensionProcessManager* GetExtensionProcessManager() = 0;
 
-  // Retrieves a pointer to the ExtensionMessageService associated with this
-  // profile.  The instance is created at startup.
-  virtual ExtensionMessageService* GetExtensionMessageService() = 0;
-
+  // DEPRECATED. Instead, use ExtensionSystemFactory::event_router().
   // Accessor. The instance is created at startup.
+  // TODO(yoz): remove this accessor (bug 104095).
   virtual ExtensionEventRouter* GetExtensionEventRouter() = 0;
 
   // Accessor. The instance is created upon first access.
@@ -334,21 +335,6 @@ class Profile : public content::BrowserContext {
   virtual net::URLRequestContextGetter* GetRequestContextForIsolatedApp(
       const std::string& app_id) = 0;
 
-  // Called by the ExtensionService that lives in this profile. Gives the
-  // profile a chance to react to the load event before the EXTENSION_LOADED
-  // notification has fired. The purpose for handling this event first is to
-  // avoid race conditions by making sure URLRequestContexts learn about new
-  // extensions before anything else needs them to know.
-  virtual void RegisterExtensionWithRequestContexts(
-      const Extension* extension) {}
-
-  // Called by the ExtensionService that lives in this profile. Lets the
-  // profile clean up its RequestContexts once all the listeners to the
-  // EXTENSION_UNLOADED notification have finished running.
-  virtual void UnregisterExtensionWithRequestContexts(
-      const std::string& extension_id,
-      const extension_misc::UnloadedExtensionReason) {}
-
   // Returns the SSLConfigService for this profile.
   virtual net::SSLConfigService* GetSSLConfigService() = 0;
 
@@ -385,11 +371,6 @@ class Profile : public content::BrowserContext {
   // that it can be invoked when the user logs out/powers down (WM_ENDSESSION).
   virtual void MarkAsCleanShutdown() = 0;
 
-  // Initializes extensions machinery.
-  // Component extensions are always enabled, external and user extensions
-  // are controlled by |extensions_enabled|.
-  virtual void InitExtensions(bool extensions_enabled) = 0;
-
   // Start up service that gathers data from a promo resource feed.
   virtual void InitPromoResources() = 0;
 
@@ -401,9 +382,6 @@ class Profile : public content::BrowserContext {
   virtual FilePath last_selected_directory() = 0;
   virtual void set_last_selected_directory(const FilePath& path) = 0;
 
-  // Returns the IO-thread-accessible profile data for this profile.
-  virtual ExtensionInfoMap* GetExtensionInfoMap() = 0;
-
   // Returns the PromoCounter for Instant, or NULL if not applicable.
   virtual PromoCounter* GetInstantPromoCounter() = 0;