Remove the WebPNetworkClient* from iOS

ios/crnet/crnet_environment.mm

 // 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.
 
 #include "ios/crnet/crnet_environment.h"
 
 #import <Foundation/Foundation.h>
 
 #include <utility>
 
 #include "base/at_exit.h"
 #include "base/atomicops.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_file.h"
 #include "base/i18n/icu_util.h"
 #include "base/json/json_writer.h"
 #include "base/mac/bind_objc_block.h"
 #include "base/mac/foundation_util.h"
 #include "base/mac/scoped_block.h"
 #include "base/macros.h"
 #include "base/metrics/statistics_recorder.h"
 #include "base/path_service.h"
 #include "base/threading/worker_pool.h"
 #include "components/prefs/json_pref_store.h"
 #include "components/prefs/pref_filter.h"
-#import "components/webp_transcode/webp_network_client_factory.h"
 #include "crypto/nss_util.h"
 #include "ios/crnet/sdch_owner_pref_storage.h"
 #include "ios/net/cookies/cookie_store_ios.h"
 #include "ios/net/crn_http_protocol_handler.h"
 #include "ios/net/empty_nsurlcache.h"
 #include "ios/net/http_cache_helper.h"
 #include "ios/net/request_tracker.h"
 #include "ios/web/public/user_agent.h"
 #include "net/base/net_errors.h"
 #include "net/base/network_change_notifier.h"
@@ skipping 322 matching lines @@
     sdch_owner_->EnablePersistentStorage(
         scoped_ptr<net::SdchOwner::PrefStorage>(
             new SdchOwnerPrefStorage(net_pref_store_.get())));
   }
   context->set_sdch_manager(sdch_manager_.get());
 }
 
 void CrNetEnvironment::InitializeOnNetworkThread() {
   DCHECK(base::MessageLoop::current() == network_io_thread_->message_loop());
 
-  // Register network clients.
-  net::RequestTracker::AddGlobalNetworkClientFactory(
-      [[[WebPNetworkClientFactory alloc]
-          initWithTaskRunner:file_user_blocking_thread_
-                                 ->task_runner()] autorelease]);
-
   ConfigureSdchOnNetworkThread();
 
   NSString* bundlePath =
       [[NSBundle mainBundle] pathForResource:@"crnet_resources"
                                       ofType:@"bundle"];
   NSBundle* bundle = [NSBundle bundleWithPath:bundlePath];
   NSString* acceptableLanguages = NSLocalizedStringWithDefaultValue(
       @"IDS_ACCEPT_LANGUAGES",
       @"Localizable",
       bundle,
@@ skipping 111 matching lines @@
 
   return user_agent_settings->GetUserAgent();
 }
 
 void CrNetEnvironment::ClearCache(ClearCacheCallback callback) {
   PostToNetworkThread(
       FROM_HERE,
       base::Bind(&net::ClearHttpCache, main_context_getter_,
                  network_io_thread_->task_runner(), base::BindBlock(callback)));
 }