Auto-install/uninstall shared module dependencies for extensions.

chrome/browser/extensions/extension_prefs.h

 // Copyright (c) 2012 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_EXTENSION_PREFS_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFS_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 63 matching lines @@
     LAUNCH_REGULAR,
     LAUNCH_FULLSCREEN,
     LAUNCH_WINDOW,
 
     // Launch an app in the in the way a click on the NTP would,
     // if no user pref were set.  Update this constant to change
     // the default for the NTP and chrome.management.launchApp().
     LAUNCH_DEFAULT = LAUNCH_REGULAR
   };
 
+  // This enum is used to store the reason an extension's install has been
+  // delayed.  Do not remove items or re-order this enum as it is used in
+  // preferences.
+  enum DelayReason {
+    DELAY_REASON_NONE = 0,
+    DELAY_REASON_GC = 1,
+    DELAY_REASON_WAIT_FOR_IDLE = 2,
+    DELAY_REASON_WAIT_FOR_IMPORTS = 3,
+  };
+
+
   // Creates base::Time classes. The default implementation is just to return
   // the current time, but tests can inject alternative implementations.
   class TimeProvider {
    public:
     TimeProvider();
 
     virtual ~TimeProvider();
 
     // By default, returns the current time (base::Time::Now()).
     virtual base::Time GetCurrentTime() const;
@@ skipping 293 matching lines @@
   // and neither will external extensions the user has explicitly uninstalled.
   // Caller takes ownership of returned structure.
   scoped_ptr<ExtensionsInfo> GetInstalledExtensionsInfo() const;
 
   // Returns the ExtensionInfo from the prefs for the given extension. If the
   // extension is not present, NULL is returned.
   scoped_ptr<ExtensionInfo> GetInstalledExtensionInfo(
       const std::string& extension_id) const;
 
   // We've downloaded an updated .crx file for the extension, but are waiting
-  // for idle time to install it.
+  // to install it.
   void SetDelayedInstallInfo(const Extension* extension,
                              Extension::State initial_state,
+                             DelayReason delay_reason,
                              const syncer::StringOrdinal& page_ordinal);
 
   // Removes any delayed install information we have for the given
   // |extension_id|. Returns true if there was info to remove; false otherwise.
   bool RemoveDelayedInstallInfo(const std::string& extension_id);
 
   // Update the prefs to finish the update for an extension.
   bool FinishDelayedInstallInfo(const std::string& extension_id);
 
   // Returns the ExtensionInfo from the prefs for delayed install information
   // for |extension_id|, if we have any. Otherwise returns NULL.
   scoped_ptr<ExtensionInfo> GetDelayedInstallInfo(
       const std::string& extension_id) const;
 
+  DelayReason GetDelayedInstallReason(const std::string& extension_id) const;
+
   // Returns information about all the extensions that have delayed install
   // information.
   scoped_ptr<ExtensionsInfo> GetAllDelayedInstallInfo() const;
 
   // Returns true if the user repositioned the app on the app launcher via drag
   // and drop.
   bool WasAppDraggedByUser(const std::string& extension_id);
 
   // Sets a flag indicating that the user repositioned the app on the app
   // launcher by drag and dropping it.
   void SetAppDraggedByUser(const std::string& extension_id);
 
   // Returns true if there is an extension which controls the preference value
   //  for |pref_key| *and* it is specific to incognito mode.
   bool HasIncognitoPrefValue(const std::string& pref_key);
 
   // Returns the creation flags mask for the extension.
   int GetCreationFlags(const std::string& extension_id) const;
 
+  // Returns the creation flags mask for a delayed install extension.
+  int GetDelayedInstallCreationFlags(const std::string& extension_id) const;
+
   // Returns true if the extension was installed from the Chrome Web Store.
   bool IsFromWebStore(const std::string& extension_id) const;
 
   // Returns true if the extension was installed from an App generated from a
   // bookmark.
   bool IsFromBookmark(const std::string& extension_id) const;
 
   // Returns true if the extension was installed as a default app.
   bool WasInstalledByDefault(const std::string& extension_id) const;
 
@@ skipping 162 matching lines @@
   scoped_ptr<TimeProvider> time_provider_;
 
   bool extensions_disabled_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionPrefs);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFS_H_