Add policies to specify an enterprise web store.

chrome/browser/extensions/component_loader.h

 // Copyright (c) 2011 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_COMPONENT_LOADER_H_
 #define CHROME_BROWSER_EXTENSIONS_COMPONENT_LOADER_H_
 #pragma once
 
 #include <string>
 
 #include "base/file_path.h"
+#include "base/values.h"
+#include "chrome/browser/prefs/pref_change_registrar.h"
+#include "content/public/browser/notification_observer.h"
+#include "testing/gtest/include/gtest/gtest_prod.h"
 
 class Extension;
-class ExtensionService;
+class ExtensionServiceInterface;
+class PrefService;
 
 namespace extensions {
 
 // For registering, loading, and unloading component extensions.
-class ComponentLoader {
+class ComponentLoader : public content::NotificationObserver {
  public:
-  explicit ComponentLoader(ExtensionService* extension_service);
+  ComponentLoader(ExtensionServiceInterface* extension_service,
+                  PrefService* prefs,
+                  PrefService* local_state);
   virtual ~ComponentLoader();
 
   // Loads any registered component extensions.
   void LoadAll();
 
-  // Loads and registers a component extension. If ExtensionService has been
-  // initialized, the extension is loaded; otherwise, the load is deferred
-  // until LoadAll is called.
-  const Extension* Add(const std::string& manifest,
+  // Registers and possibly loads a component extension. If ExtensionService
+  // has been initialized, the extension is loaded; otherwise, the load is
+  // deferred until LoadAll is called.
+  const Extension* Add(std::string& manifest_contents,
+                       const FilePath& root_directory);
+
+  // Convenience method for registering a component extension by resource id.
+  const Extension* Add(int manifest_resource_id,
                        const FilePath& root_directory);
 
   // Unloads a component extension and removes it from the list of component
   // extensions to be loaded.
-  void Remove(const std::string& manifest_str);
+  void Remove(const FilePath& root_directory);
 
   // Adds the default component extensions.
   //
   // Component extension manifests must contain a 'key' property with a unique
   // public key, serialized in base64. You can create a suitable value with the
   // following commands on a unixy system:
   //
   //   ssh-keygen -t rsa -b 1024 -N '' -f /tmp/key.pem
   //   openssl rsa -pubout -outform DER < /tmp/key.pem 2>/dev/null | base64 -w 0
   void AddDefaultComponentExtensions();
 
+  // content::NotificationObserver implementation
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
+  static void RegisterUserPrefs(PrefService* prefs);
+
+  // Parse the given JSON manifest. Returns NULL if it cannot be parsed, or if
+  // if the result is not a DictionaryValue.
+  DictionaryValue* ParseManifest(const std::string& manifest_contents) const;
+
+  // Clear the list of registered extensions.
+  void ClearAllRegistered() {
+    component_extensions_.clear();
+  }
+
  private:
   // Information about a registered component extension.
   struct ComponentExtensionInfo {
-    ComponentExtensionInfo(const std::string& manifest,
+    ComponentExtensionInfo(const DictionaryValue* manifest,
                            const FilePath& root_directory)
         : manifest(manifest),
           root_directory(root_directory) {
     }
 
-    bool Equals(const ComponentExtensionInfo& other) const;
-
-    // The extension's manifest. This is required for component extensions so
-    // that ExtensionService doesn't need to go to disk to load them.
-    std::string manifest;
+    // The parsed contents of the extensions's manifest file.
+    const DictionaryValue* manifest;
 
     // Directory where the extension is stored.
     FilePath root_directory;
   };
 
+  const Extension* Add(const DictionaryValue* parsed_manifest,
+                       const FilePath& root_directory);
+
   // Loads a registered component extension.
   const Extension* Load(const ComponentExtensionInfo& info);
 
-  // Registers an extension to be loaded as a component extension.
-  void Register(const ComponentExtensionInfo& info) {
-    component_extensions_.push_back(info);
-  }
+  void AddFileManagerExtension();
+
+  // Add the enterprise webstore extension, or reload it if already loaded.
+  void AddOrReloadEnterpriseWebStore();
+
+  PrefService* prefs_;
+  PrefService* local_state_;
+
+  ExtensionServiceInterface* extension_service_;
 
   // List of registered component extensions (see Extension::Location).
   typedef std::vector<ComponentExtensionInfo> RegisteredComponentExtensions;
   RegisteredComponentExtensions component_extensions_;
 
-  ExtensionService* extension_service_;
+  PrefChangeRegistrar pref_change_registrar_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_COMPONENT_LOADER_H_