Remove unused fields from //content.

content/browser/gpu/gpu_data_manager_impl_private.cc

 // Copyright (c) 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.
 
 #include "content/browser/gpu/gpu_data_manager_impl_private.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
@@ skipping 944 matching lines @@
     GpuDataManagerImpl* owner) {
   return new GpuDataManagerImplPrivate(owner);
 }
 
 GpuDataManagerImplPrivate::GpuDataManagerImplPrivate(GpuDataManagerImpl* owner)
     : complete_gpu_info_already_requested_(false),
       observer_list_(new GpuDataManagerObserverList),
       use_swiftshader_(false),
       card_blacklisted_(false),
       update_histograms_(true),
-      window_count_(0),
       domain_blocking_enabled_(true),
       owner_(owner),
       gpu_process_accessible_(true),
       is_initialized_(false),
       finalized_(false) {
   DCHECK(owner_);
   const base::CommandLine* command_line =
       base::CommandLine::ForCurrentProcess();
   swiftshader_path_ =
       base::CommandLine::ForCurrentProcess()->GetSwitchValuePath(
@@ skipping 221 matching lines @@
   gpu_info_.context_info_state = gpu::kCollectInfoFatalFailure;
 #if defined(OS_WIN)
   gpu_info_.dx_diagnostics_info_state = gpu::kCollectInfoFatalFailure;
 #endif
   complete_gpu_info_already_requested_ = true;
   // Some observers might be waiting.
   NotifyGpuInfoUpdate();
 }
 
 }  // namespace content