Remove unused foreground member variable from SB Protocol Manager.

chrome/browser/safe_browsing/protocol_manager.cc

 // 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.
 
 #include "chrome/browser/safe_browsing/protocol_manager.h"
 
 #include <utility>
 
 #include "base/base64.h"
 #include "base/environment.h"
@@ skipping 201 matching lines @@
                         kSbTimerStartIntervalSecMax))),
       chunk_pending_to_write_(false),
       next_gethash_v4_time_(Time::FromDoubleT(0)),
       version_(config.version),
       update_size_(0),
       client_name_(config.client_name),
       request_context_getter_(request_context_getter),
       url_prefix_(config.url_prefix),
       backup_update_reason_(BACKUP_UPDATE_REASON_MAX),
       disable_auto_update_(config.disable_auto_update),
-      url_fetcher_id_(0),
-      app_in_foreground_(true) {
+      url_fetcher_id_(0) {
   DCHECK(!url_prefix_.empty());
 
   backup_url_prefixes_[BACKUP_UPDATE_REASON_CONNECT] =
       config.backup_connect_error_url_prefix;
   backup_url_prefixes_[BACKUP_UPDATE_REASON_HTTP] =
       config.backup_http_error_url_prefix;
   backup_url_prefixes_[BACKUP_UPDATE_REASON_NETWORK] =
       config.backup_network_error_url_prefix;
 
   // Set the backoff multiplier fuzz to a random value between 0 and 1.
@@ skipping 860 matching lines @@
 SafeBrowsingProtocolManager::FullHashDetails::FullHashDetails(
     FullHashCallback callback,
     bool is_download)
     : callback(callback), is_download(is_download) {}
 
 SafeBrowsingProtocolManager::FullHashDetails::~FullHashDetails() {}
 
 SafeBrowsingProtocolManagerDelegate::~SafeBrowsingProtocolManagerDelegate() {}
 
 }  // namespace safe_browsing