Use IOSImageDataFetcherWrapper for favicon

ios/web/public/web_state/web_state.h

 // Copyright 2013 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 IOS_WEB_PUBLIC_WEB_STATE_WEB_STATE_H_
 #define IOS_WEB_PUBLIC_WEB_STATE_WEB_STATE_H_
 
 #include <stdint.h>
 
 #include <string>
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/memory/weak_ptr.h"
 #include "base/supports_user_data.h"
 #include "ios/web/public/referrer.h"
 #include "ios/web/public/web_state/url_verification_constants.h"
 #include "ui/base/page_transition_types.h"
 #include "ui/base/window_open_disposition.h"
 #include "ui/gfx/geometry/size.h"
 #include "url/gurl.h"
 
 class GURL;
-class SkBitmap;
 
 @class CRWJSInjectionReceiver;
 @class CRWNavigationManagerStorage;
 @protocol CRWScrollableContent;
 @protocol CRWWebViewProxy;
 typedef id<CRWWebViewProxy> CRWWebViewProxyType;
 @class UIView;
 typedef UIView<CRWScrollableContent> CRWContentView;
 
 namespace base {
@@ skipping 42 matching lines @@
     // The disposition requested by the navigation source.
     WindowOpenDisposition disposition;
 
     // The transition type of navigation.
     ui::PageTransition transition;
 
     // Whether this navigation is initiated by the renderer process.
     bool is_renderer_initiated;
   };
 
-  // Callback for |DownloadImage()|.
-  typedef base::Callback<void(
-      int, /* id */
-      int, /* HTTP status code */
-      const GURL&, /* image_url */
-      const std::vector<SkBitmap>&, /* bitmaps */
-      /* The sizes in pixel of the bitmaps before they were resized due to the
-         max bitmap size passed to DownloadImage(). Each entry in the bitmaps
-         vector corresponds to an entry in the sizes vector. If a bitmap was
-         resized, there should be a single returned bitmap. */
-      const std::vector<gfx::Size>&)>
-          ImageDownloadCallback;
-
   // Creates a new WebState.
   static std::unique_ptr<WebState> Create(const CreateParams& params);
   // Creates a new WebState from a serialized NavigationManager.
   static std::unique_ptr<WebState> Create(
       const CreateParams& params,
       CRWNavigationManagerStorage* session_storage);
 
   ~WebState() override {}
 
   // Gets/Sets the delegate.
@@ skipping 125 matching lines @@
   virtual void AddScriptCommandCallback(const ScriptCommandCallback& callback,
                                         const std::string& command_prefix) = 0;
 
   // Removes the callback associated with |command_prefix|.
   virtual void RemoveScriptCommandCallback(
       const std::string& command_prefix) = 0;
 
   // Returns the current CRWWebViewProxy object.
   virtual CRWWebViewProxyType GetWebViewProxy() const = 0;
 
-  // Sends a request to download the given image |url| and returns the unique
-  // id of the download request. When the download is finished, |callback| will
-  // be called with the bitmaps received from the renderer.
-  // If |is_favicon| is true, the cookies are not sent and not accepted during
-  // download.
-  // Bitmaps with pixel sizes larger than |max_bitmap_size| are filtered out
-  // from the bitmap results. If there are no bitmap results <=
-  // |max_bitmap_size|, the smallest bitmap is resized to |max_bitmap_size| and
-  // is the only result. A |max_bitmap_size| of 0 means unlimited.
-  // If |bypass_cache| is true, |url| is requested from the server even if it
-  // is present in the browser cache.
-  virtual int DownloadImage(const GURL& url,
-                            bool is_favicon,
-                            uint32_t max_bitmap_size,
-                            bool bypass_cache,
-                            const ImageDownloadCallback& callback) = 0;
-
   // Returns Mojo interface registry for this WebState.
   virtual service_manager::InterfaceRegistry* GetMojoInterfaceRegistry() = 0;
 
  protected:
   friend class WebStateObserver;
   friend class WebStatePolicyDecider;
 
   // Adds and removes observers for page navigation notifications. The order in
   // which notifications are sent to observers is undefined. Clients must be
   // sure to remove the observer before they go away.
@@ skipping 15 matching lines @@
 
   // Returns a WeakPtr<WebState> to the current WebState. Must remain private
   // and only call must be in WebStateWeakPtrFactory. Please consult that class
   // for more details. Remove as part of http://crbug.com/556736.
   virtual base::WeakPtr<WebState> AsWeakPtr() = 0;
 };
 
 }  // namespace web
 
 #endif  // IOS_WEB_PUBLIC_WEB_STATE_WEB_STATE_H_