Removes pinning code from TopSites as we no longer need it.

chrome/browser/history/top_sites.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_HISTORY_TOP_SITES_H_
 #define CHROME_BROWSER_HISTORY_TOP_SITES_H_
 #pragma once
 
 #include <list>
 #include <set>
@@ skipping 13 matching lines @@
 #include "chrome/browser/history/history_types.h"
 #include "chrome/browser/history/page_usage_data.h"
 #include "chrome/common/thumbnail_score.h"
 #include "googleurl/src/gurl.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/image/image.h"
 
 class FilePath;
 class Profile;
 
-namespace base {
-class DictionaryValue;
-}
-
 namespace history {
 
 class TopSitesCache;
 class TopSitesBackend;
 class TopSitesTest;
 
 // Stores the data for the top "most visited" sites. This includes a cache of
 // the most visited data from history, as well as the corresponding thumbnails
 // of those sites.
 //
@@ skipping 71 matching lines @@
 
   // Removes a URL from the blacklist.
   void RemoveBlacklistedURL(const GURL& url);
 
   // Returns true if the URL is blacklisted.
   bool IsBlacklisted(const GURL& url);
 
   // Clear the blacklist.
   void ClearBlacklistedURLs();
 
-  // Pinned URLs
-
-  // Pin a URL at |index|.
-  void AddPinnedURL(const GURL& url, size_t index);
-
-  // Returns true if a URL is pinned.
-  bool IsURLPinned(const GURL& url);
-
-  // Unpin a URL.
-  void RemovePinnedURL(const GURL& url);
-
-  // Return a URL pinned at |index| via |out|. Returns true if there
-  // is a URL pinned at |index|.
-  bool GetPinnedURLAtIndex(size_t index, GURL* out);
-
   // Shuts down top sites.
   void Shutdown();
 
   // Generates the diff of things that happened between "old" and "new."
   //
   // The URLs that are in "new" but not "old" will be have their index into
   // "new" put in |added_urls|. The URLs that are in "old" but not "new" will
   // have their index into "old" put into |deleted_urls|.
   //
   // URLs appearing in both old and new lists but having different indices will
@@ skipping 106 matching lines @@
   // Finds the given URL in the redirect chain for the given TopSite, and
   // returns the distance from the destination in hops that the given URL is.
   // The URL is assumed to be in the list. The destination is 0.
   static int GetRedirectDistanceForURL(const MostVisitedURL& most_visited,
                                        const GURL& url);
 
   // Add prepopulated pages: 'welcome to Chrome' and themes gallery to |urls|.
   // Returns true if any pages were added.
   static bool AddPrepopulatedPages(MostVisitedURLList* urls);
 
-  // Convert pinned_urls_ dictionary to the new format. Use URLs as
-  // dictionary keys.
-  void MigratePinnedURLs();
-
-  // Takes |urls|, produces it's copy in |out| after removing
-  // blacklisted URLs and reordering pinned URLs.
-  void ApplyBlacklistAndPinnedURLs(const MostVisitedURLList& urls,
-                                   MostVisitedURLList* out);
+  // Takes |urls|, produces it's copy in |out| after removing blacklisted URLs.
+  void ApplyBlacklist(const MostVisitedURLList& urls, MostVisitedURLList* out);
 
   // Converts a url into a canonical string representation.
   std::string GetURLString(const GURL& url);
 
   // Returns an MD5 hash of the URL. Hashing is required for blacklisted URLs.
   std::string GetURLHash(const GURL& url);
 
   // Returns the delay until the next update of history is needed.
   // Uses num_urls_changed
   base::TimeDelta GetUpdateDelay();
@@ skipping 79 matching lines @@
   // non-empty at startup. After we read the top sites from the DB, we'll
   // always have a cached list.
   PendingCallbackSet pending_callbacks_;
 
   // Stores thumbnails for unknown pages. When SetPageThumbnail is
   // called, if we don't know about that URL yet and we don't have
   // enough Top Sites (new profile), we store it until the next
   // SetTopSites call.
   TempImages temp_images_;
 
-  // This is a dictionary for the pinned URLs for the the most visited part of
-  // the new tab page. Key is the URL, value is index where it is pinned at (may
-  // be the same as key). This is owned by the PrefService.
-  const base::DictionaryValue* pinned_urls_;
-
   // See description above HistoryLoadState.
   HistoryLoadState history_state_;
 
   // See description above TopSitesLoadState.
   TopSitesLoadState top_sites_state_;
 
   // Are we loaded?
   bool loaded_;
 
   DISALLOW_COPY_AND_ASSIGN(TopSites);
 };
 
 extern const TopSites::PrepopulatedPage kPrepopulatedPages[2];
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_TOP_SITES_H_