Remove old session history logic.

content/renderer/BUILD.gn

 # 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.
 
 import("//build/config/chromecast_build.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//media/media_options.gni")
 import("//ppapi/features/features.gni")
@@ skipping 129 matching lines @@
     "gpu/gpu_benchmarking_extension.h",
     "gpu/queue_message_swap_promise.cc",
     "gpu/queue_message_swap_promise.h",
     "gpu/render_widget_compositor.cc",
     "gpu/render_widget_compositor.h",
     "gpu/render_widget_compositor_delegate.h",
     "gpu/renderer_compositor_frame_sink.cc",
     "gpu/renderer_compositor_frame_sink.h",
     "gpu/stream_texture_host_android.cc",
     "gpu/stream_texture_host_android.h",
-    "history_controller.cc",
-    "history_controller.h",
     "history_entry.cc",
     "history_entry.h",
     "history_serialization.cc",
     "history_serialization.h",
     "idle_user_detector.cc",
     "idle_user_detector.h",
     "image_downloader/image_downloader_base.cc",
     "image_downloader/image_downloader_base.h",
     "image_downloader/image_downloader_impl.cc",
     "image_downloader/image_downloader_impl.h",
@@ skipping 771 matching lines @@
     # For the defines in mojo_media_config.
     public_configs = [ "//media/mojo/services:mojo_media_config" ]
   }
 
   if (!is_component_build) {
     public_deps = [
       ":renderer",
     ]
   }
 }