Media Galleries: Only try to initialize removable media galleries once per profile.

chrome/browser/media_gallery/media_file_system_registry.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.
 
 // MediaFileSystemRegistry registers pictures directories and media devices as
 // File API filesystems and keeps track of the path to filesystem ID mappings.
 
 #ifndef CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_
 #define CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_
 
@@ skipping 76 matching lines @@
   // currently attached removable devices are added to the preferences.
   // Called on the UI thread.
   MediaGalleriesPreferences* GetPreferences(Profile* profile);
 
   // RemovableStorageObserver implementation.
   virtual void OnRemovableStorageAttached(
       const RemovableStorageNotifications::StorageInfo& info) OVERRIDE;
   virtual void OnRemovableStorageDetached(
       const RemovableStorageNotifications::StorageInfo& info) OVERRIDE;
 
-  size_t GetExtensionHostCountForTests() const;
+  size_t GetExtensionGalleriesHostCountForTests() const;
 
   // See TransientDeviceIds::GetTransientIdForDeviceId().
   uint64 GetTransientIdForDeviceId(const std::string& device_id);
 
   // Keys for metadata about a media gallery file system.
   static const char kDeviceIdKey[];
   static const char kGalleryIdKey[];
   static const char kNameKey[];
 
  private:
@@ skipping 46 matching lines @@
   scoped_ptr<MediaFileSystemContext> file_system_context_;
 
   TransientDeviceIds transient_device_ids_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaFileSystemRegistry);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_