[Suggestions] Rename ThumbnailManager to ImageManagerImpl

chrome/browser/search/suggestions/thumbnail_manager.h

Index: chrome/browser/search/suggestions/thumbnail_manager.h
diff --git a/chrome/browser/search/suggestions/thumbnail_manager.h b/chrome/browser/search/suggestions/thumbnail_manager.h
deleted file mode 100644
index 9d45aa7c302db874d0f5f9025d54d5f318509fa5..0000000000000000000000000000000000000000
--- a/chrome/browser/search/suggestions/thumbnail_manager.h
+++ /dev/null
@@ -1,170 +0,0 @@
-// Copyright 2014 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_SEARCH_SUGGESTIONS_THUMBNAIL_MANAGER_H_
-#define CHROME_BROWSER_SEARCH_SUGGESTIONS_THUMBNAIL_MANAGER_H_
-
-#include <map>
-#include <utility>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/callback.h"
-#include "base/containers/hash_tables.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "chrome/browser/bitmap_fetcher/bitmap_fetcher.h"
-#include "components/leveldb_proto/proto_database.h"
-#include "components/suggestions/image_manager.h"
-#include "components/suggestions/proto/suggestions.pb.h"
-#include "ui/gfx/image/image_skia.h"
-#include "url/gurl.h"
-
-namespace net {
-class URLRequestContextGetter;
-}
-
-namespace suggestions {
-
-class SuggestionsProfile;
-class ThumbnailData;
-
-// A class used to fetch server thumbnails asynchronously and manage the caching
-// layer (both in memory and on disk).
-class ThumbnailManager : public ImageManager,
-                         public chrome::BitmapFetcherDelegate {
- public:
-  typedef std::vector<ThumbnailData> ThumbnailVector;
-
-  ThumbnailManager(
-      net::URLRequestContextGetter* url_request_context,
-      scoped_ptr<leveldb_proto::ProtoDatabase<ThumbnailData> > database,
-      const base::FilePath& database_dir);
-  virtual ~ThumbnailManager();
-
-  // Overrides from ImageManager.
-  virtual void Initialize(const SuggestionsProfile& suggestions) OVERRIDE;
-  // Should be called from the UI thread.
-  virtual void GetImageForURL(
-      const GURL& url,
-      base::Callback<void(const GURL&, const SkBitmap*)> callback) OVERRIDE;
-
- private:
-  friend class MockThumbnailManager;
-  friend class ThumbnailManagerBrowserTest;
-  FRIEND_TEST_ALL_PREFIXES(ThumbnailManagerTest, InitializeTest);
-  FRIEND_TEST_ALL_PREFIXES(ThumbnailManagerBrowserTest,
-                           GetImageForURLNetworkCacheHit);
-  FRIEND_TEST_ALL_PREFIXES(ThumbnailManagerBrowserTest,
-                           GetImageForURLNetworkCacheNotInitialized);
-
-  // Used for testing.
-  ThumbnailManager();
-
-  typedef std::vector<base::Callback<void(const GURL&, const SkBitmap*)> >
-      CallbackVector;
-  typedef base::hash_map<std::string, SkBitmap> ThumbnailMap;
-
-  // State related to a thumbnail fetch (associated website url, thumbnail_url,
-  // fetcher, pending callbacks).
-  struct ThumbnailRequest {
-    ThumbnailRequest();
-    explicit ThumbnailRequest(chrome::BitmapFetcher* f);
-    ~ThumbnailRequest();
-
-    void swap(ThumbnailRequest* other) {
-      std::swap(url, other->url);
-      std::swap(thumbnail_url, other->thumbnail_url);
-      std::swap(callbacks, other->callbacks);
-      std::swap(fetcher, other->fetcher);
-    }
-
-    GURL url;
-    GURL thumbnail_url;
-    chrome::BitmapFetcher* fetcher;
-    // Queue for pending callbacks, which may accumulate while the request is in
-    // flight.
-    CallbackVector callbacks;
-  };
-
-  typedef std::map<const GURL, ThumbnailRequest> ThumbnailRequestMap;
-
-  // Looks up thumbnail for |url|. If found, writes the result to
-  // |thumbnail_url| and returns true. Otherwise just returns false.
-  bool GetThumbnailURL(const GURL& url, GURL* thumbnail_url);
-
-  void QueueCacheRequest(
-      const GURL& url, const GURL& thumbnail_url,
-      base::Callback<void(const GURL&, const SkBitmap*)> callback);
-
-  void ServeFromCacheOrNetwork(
-      const GURL& url, const GURL& thumbnail_url,
-      base::Callback<void(const GURL&, const SkBitmap*)> callback);
-
-  // Will return false if no bitmap was found corresponding to |url|, else
-  // return true and call |callback| with the found bitmap.
-  bool ServeFromCache(
-      const GURL& url,
-      base::Callback<void(const GURL&, const SkBitmap*)> callback);
-
-  // Returns null if the |url| had no entry in the cache.
-  SkBitmap* GetBitmapFromCache(const GURL& url);
-
-  void StartOrQueueNetworkRequest(
-      const GURL& url, const GURL& thumbnail_url,
-      base::Callback<void(const GURL&, const SkBitmap*)> callback);
-
-  // Inherited from BitmapFetcherDelegate. Runs on the UI thread.
-  virtual void OnFetchComplete(const GURL thumbnail_url,
-                               const SkBitmap* bitmap) OVERRIDE;
-
-  // Save the thumbnail bitmap in the cache and in the database.
-  void SaveThumbnail(const GURL& url, const SkBitmap& bitmap);
-
-  // Database callback methods.
-  // Will initiate loading the entries.
-  void OnDatabaseInit(bool success);
-  // Will transfer the loaded |entries| in memory (|thumbnail_map_|).
-  void OnDatabaseLoad(bool success, scoped_ptr<ThumbnailVector> entries);
-  void OnDatabaseSave(bool success);
-
-  // Take entries from the database and put them in the local cache.
-  void LoadEntriesInCache(scoped_ptr<ThumbnailVector> entries);
-
-  void ServePendingCacheRequests();
-
-  // From SkBitmap to the vector of JPEG-encoded bytes, |dst|. Visible only for
-  // testing.
-  static bool EncodeThumbnail(const SkBitmap& bitmap,
-                              std::vector<unsigned char>* dest);
-
-  // Map from URL to thumbnail URL. Should be kept up to date when a new
-  // SuggestionsProfile is available.
-  std::map<GURL, GURL> thumbnail_url_map_;
-
-  // Map from each thumbnail URL to the request information (associated website
-  // url, fetcher, pending callbacks).
-  ThumbnailRequestMap pending_net_requests_;
-
-  // Map from website URL to request information, used for pending cache
-  // requests while the database hasn't loaded.
-  ThumbnailRequestMap pending_cache_requests_;
-
-  // Holding the bitmaps in memory, keyed by website URL string.
-  ThumbnailMap thumbnail_map_;
-
-  net::URLRequestContextGetter* url_request_context_;
-
-  scoped_ptr<leveldb_proto::ProtoDatabase<ThumbnailData> > database_;
-
-  bool database_ready_;
-
-  base::WeakPtrFactory<ThumbnailManager> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(ThumbnailManager);
-};
-
-}  // namespace suggestions
-
-#endif  // CHROME_BROWSER_SEARCH_SUGGESTIONS_THUMBNAIL_MANAGER_H_