content: Extract url utility functions into url_utils.{h,cc}

chrome/browser/download/download_util.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.
 //
 // Download utilities.
 
 #ifndef CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_
 #define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_
 
 #include <string>
@@ skipping 125 matching lines @@
 // is only required for Mac OS X, elsewhere it can be NULL.
 void DragDownload(const content::DownloadItem* download,
                   gfx::Image* icon,
                   gfx::NativeView view);
 
 // Helpers ---------------------------------------------------------------------
 
 // Get the localized status text for an in-progress download.
 string16 GetProgressStatusText(content::DownloadItem* download);
 
-// Check whether we can do the saving page operation for the specified URL.
-bool IsSavableURL(const GURL& url);
-
 // Record the total number of items and the number of in-progress items showing
 // in the shelf when it closes.  Set |autoclose| to true when the shelf is
 // closing itself, false when the user explicitly closed it.
 void RecordShelfClose(int size, int in_progress, bool autoclose);
 
 // Used for counting UMA stats. Similar to content's
 // download_stats::DownloadCountTypes but from the chrome layer.
 enum ChromeDownloadCountTypes {
   // Stale enum values left around os that values passed to UMA don't
   // change.
@@ skipping 32 matching lines @@
 
 // Increment one of the above counts.
 void RecordDownloadCount(ChromeDownloadCountTypes type);
 
 // Record initiation of a download from a specific source.
 void RecordDownloadSource(ChromeDownloadSource source);
 
 }  // namespace download_util
 
 #endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_