Remove unused fields from //content.

content/renderer/render_thread_impl.h

 // 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.
 
 #ifndef CONTENT_RENDERER_RENDER_THREAD_IMPL_H_
 #define CONTENT_RENDERER_RENDER_THREAD_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 654 matching lines @@
   scoped_refptr<base::SingleThreadTaskRunner>
       main_thread_compositor_task_runner_;
 
   // Compositor settings.
   bool is_gpu_rasterization_enabled_;
   bool is_gpu_rasterization_forced_;
   int gpu_rasterization_msaa_sample_count_;
   bool is_lcd_text_enabled_;
   bool is_distance_field_text_enabled_;
   bool is_zero_copy_enabled_;
-  bool is_one_copy_enabled_;
   bool is_gpu_memory_buffer_compositor_resources_enabled_;
   bool is_partial_raster_enabled_;
   bool is_elastic_overscroll_enabled_;
   std::vector<unsigned> use_image_texture_targets_;
   std::vector<unsigned> use_video_frame_image_texture_targets_;
   bool are_image_decode_tasks_enabled_;
   bool is_threaded_animation_enabled_;
 
   class PendingRenderFrameConnect
       : public base::RefCounted<PendingRenderFrameConnect> {
@@ skipping 31 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(RenderThreadImpl);
 };
 
 #if defined(COMPILER_MSVC)
 #pragma warning(pop)
 #endif
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_THREAD_IMPL_H_