Stop showing page actions in the location bar with redesign enabled

chrome/browser/extensions/active_script_controller.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_ACTIVE_SCRIPT_CONTROLLER_H_
 #define CHROME_BROWSER_EXTENSIONS_ACTIVE_SCRIPT_CONTROLLER_H_
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/linked_ptr.h"
 #include "chrome/browser/extensions/location_bar_controller.h"
 #include "content/public/browser/web_contents_observer.h"
+#include "extensions/browser/extension_registry_observer.h"
 #include "extensions/common/permissions/permissions_data.h"
 #include "extensions/common/user_script.h"
 
 namespace content {
 class WebContents;
 }
 
 namespace IPC {
 class Message;
 }
 
 class ExtensionAction;
 
 namespace extensions {
 class Extension;
+class ExtensionRegistry;
 
 // The provider for ExtensionActions corresponding to scripts which are actively
 // running or need permission.
 // TODO(rdevlin.cronin): This isn't really a controller, but it has good parity
 // with LocationBar"Controller".
-class ActiveScriptController : public content::WebContentsObserver {
+class ActiveScriptController : public content::WebContentsObserver,
+                               public ExtensionRegistryObserver {
  public:
   explicit ActiveScriptController(content::WebContents* web_contents);
   virtual ~ActiveScriptController();
 
   // Returns the ActiveScriptController for the given |web_contents|, or NULL
   // if one does not exist.
   static ActiveScriptController* GetForWebContents(
       content::WebContents* web_contents);
 
   // Notifies the ActiveScriptController that an extension has been granted
@@ skipping 12 matching lines @@
   // been clicked, running any pending tasks that were previously shelved.
   void OnClicked(const Extension* extension);
 
   // Returns true if there is an active script injection action for |extension|.
   bool HasActiveScriptAction(const Extension* extension);
 
   // Returns the action to display for the given |extension|, or NULL if no
   // action should be displayed.
   ExtensionAction* GetActionForExtension(const Extension* extension);
 
-  // Notifies that the given |extension| has been unloaded; forwarded from the
-  // ExtensionRegistryObserver method.
-  void OnExtensionUnloaded(const Extension* extension);
-
 #if defined(UNIT_TEST)
   // Only used in tests.
   PermissionsData::AccessType RequiresUserConsentForScriptInjectionForTesting(
       const Extension* extension,
       UserScript::InjectionType type) {
     return RequiresUserConsentForScriptInjection(extension, type);
   }
   void RequestScriptInjectionForTesting(const Extension* extension,
                                         const base::Closure& callback) {
     return RequestScriptInjection(extension, callback);
@@ skipping 21 matching lines @@
 
   // Handle the RequestScriptInjectionPermission message.
   void OnRequestScriptInjectionPermission(
       const std::string& extension_id,
       UserScript::InjectionType script_type,
       int64 request_id);
 
   // Grants permission for the given request to run.
   void PermitScriptInjection(int64 request_id);
 
+  // Log metrics.
+  void LogUMA() const;
+
   // content::WebContentsObserver implementation.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
   virtual void DidNavigateMainFrame(
       const content::LoadCommittedDetails& details,
       const content::FrameNavigateParams& params) OVERRIDE;
 
-  // Log metrics.
-  void LogUMA() const;
+  // ExtensionRegistryObserver:
+  virtual void OnExtensionUnloaded(
+      content::BrowserContext* browser_context,
+      const Extension* extension,
+      UnloadedExtensionInfo::Reason reason) OVERRIDE;
 
   // Whether or not the ActiveScriptController is enabled (corresponding to the
   // kActiveScriptEnforcement switch). If it is not, it acts as an empty shell,
   // always allowing scripts to run and never displaying actions.
   bool enabled_;
 
   // The map of extension_id:pending_request of all pending requests.
   PendingRequestMap pending_requests_;
 
   // The extensions which have been granted permission to run on the given page.
   // TODO(rdevlin.cronin): Right now, this just keeps track of extensions that
   // have been permitted to run on the page via this interface. Instead, it
   // should incorporate more fully with ActiveTab.
   std::set<std::string> permitted_extensions_;
 
   // Script badges that have been generated for extensions. This is both those
   // with actions already declared that are copied and normalised, and actions
   // that get generated for extensions that haven't declared anything.
   typedef std::map<std::string, linked_ptr<ExtensionAction> > ActiveScriptMap;
   ActiveScriptMap active_script_actions_;
 
+  ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
+      extension_registry_observer_;
+
   DISALLOW_COPY_AND_ASSIGN(ActiveScriptController);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_ACTIVE_SCRIPT_CONTROLLER_H_