Remove deprecated ...EXTENSION_READY from user_script_master.cc

R=rockot@chromium.org
BUG=354046

Review URL: https://codereview.chromium.org/418413003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@287365 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/extensions/user_script_master.cc

@@ -25,6 +25,7 @@
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/extensions_browser_client.h"
 #include "extensions/common/file_util.h"
+#include "extensions/common/one_shot_event.h"
 #include "extensions/common/message_bundle.h"
 #include "ui/base/resource/resource_bundle.h"
 
@@ -350,11 +351,12 @@ UserScriptMaster::UserScriptMaster(Profile* profile)
       extension_registry_observer_(this),
       weak_factory_(this) {
   extension_registry_observer_.Add(ExtensionRegistry::Get(profile_));
-  registrar_.Add(this,
-                 extensions::NOTIFICATION_EXTENSIONS_READY_DEPRECATED,
-                 content::Source<Profile>(profile_));
   registrar_.Add(this, content::NOTIFICATION_RENDERER_PROCESS_CREATED,
                  content::NotificationService::AllBrowserContextsAndSources());
+  ExtensionSystem::Get(profile)->ready().Post(
+      FROM_HERE,
+      base::Bind(&UserScriptMaster::OnExtensionsReady,
+        weak_factory_.GetWeakPtr()));
 }
 
 UserScriptMaster::~UserScriptMaster() {
@@ -437,13 +439,7 @@ void UserScriptMaster::OnExtensionUnloaded(
 void UserScriptMaster::Observe(int type,
                                const content::NotificationSource& source,
                                const content::NotificationDetails& details) {
-  bool should_start_load = false;
-  switch (type) {
-    case extensions::NOTIFICATION_EXTENSIONS_READY_DEPRECATED:
-      extensions_service_ready_ = true;
-      should_start_load = true;
-      break;
-    case content::NOTIFICATION_RENDERER_PROCESS_CREATED: {
+  DCHECK_EQ(type, content::NOTIFICATION_RENDERER_PROCESS_CREATED);
   content::RenderProcessHost* process =
       content::Source<content::RenderProcessHost>(source).ptr();
   Profile* profile = Profile::FromBrowserContext(
@@ -455,18 +451,14 @@ void UserScriptMaster::Observe(int type,
                GetSharedMemory(),
                std::set<std::string>());  // Include all extensions.
   }
-      break;
-    }
-    default:
-      DCHECK(false);
-  }
+}
 
-  if (should_start_load) {
+void UserScriptMaster::OnExtensionsReady() {
+  extensions_service_ready_ = true;
   if (is_loading())
     pending_load_ = true;
   else
     StartLoad();
-  }
 }
 
 void UserScriptMaster::StartLoad() {

chrome/browser/extensions/user_script_master.h

@@ -80,6 +80,9 @@ class UserScriptMaster : public content::NotificationObserver,
       const Extension* extension,
       UnloadedExtensionInfo::Reason reason) OVERRIDE;
 
+  // Called when ExtensionSystem is ready.
+  void OnExtensionsReady();
+
   // Called once we have finished loading the scripts on the file thread.
   void OnScriptsLoaded(scoped_ptr<UserScriptList> user_scripts,
                        scoped_ptr<base::SharedMemory> shared_memory);