Garbage collect extensions only if there are no pending extension installs that could still be usin…

chrome/browser/extensions/pending_extension_manager.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_PENDING_EXTENSION_MANAGER_H_
 #define CHROME_BROWSER_EXTENSIONS_PENDING_EXTENSION_MANAGER_H_
 
 #include <list>
 #include <string>
 #include <utility>
@@ skipping 38 matching lines @@
   // true if such an extension was found and removed, false otherwise.
   bool Remove(const std::string& id);
 
   // Get the  information for a pending extension.  Returns a pointer to the
   // pending extension with id |id|, or NULL if there is no such extension.
   const PendingExtensionInfo* GetById(const std::string& id) const;
 
   // Is |id| in the set of pending extensions?
   bool IsIdPending(const std::string& id) const;
 
+  // Returns true if there are any extensions pending.
+  bool HasPendingExtensions() const;
+
   // Whether there is pending extension install from sync.
   bool HasPendingExtensionFromSync() const;
 
   // Adds an extension in a pending state; the extension with the
   // given info will be installed on the next auto-update cycle.
   // Return true if the extension was added.  Will return false
   // if the extension is pending from another source which overrides
   // sync installs (such as a policy extension) or if the extension
   // is already installed.
   //
@@ skipping 58 matching lines @@
   friend void SetupPendingExtensionManagerForTest(
       int count, const GURL& update_url,
       PendingExtensionManager* pending_extension_manager);
 
   DISALLOW_COPY_AND_ASSIGN(PendingExtensionManager);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_PENDING_EXTENSION_MANAGER_H_