Remove remote tree host and some related input and metro_driver code

chrome/browser/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/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
 import("//media/media_options.gni")
@@ skipping 840 matching lines @@
       "//chrome_elf",
       "//chrome_elf:constants",
       "//chrome_elf:dll_hash",
       "//components/browser_watcher",
       "//components/browser_watcher:browser_watcher_client",
       "//google_update",
       "//third_party/iaccessible2",
       "//third_party/isimpledom",
       "//third_party/wtl",
       "//ui/metro_viewer",
-      "//win8:metro_viewer",
     ]
 
     all_dependent_configs = [ ":browser_win_linker_flags" ]
 
     if (!is_chrome_branded) {
       deps -= [ "//google_update" ]
       sources -= [
         "google/did_run_updater_win.cc",
         "google/did_run_updater_win.h",
         "google/google_update_win.cc",
@@ skipping 459 matching lines @@
         rebase_path(gypi_values.chrome_browser_rlz_sources, ".", "//chrome")
     deps = [
       "//components/google/core/browser",
       "//components/omnibox/browser",
       "//components/rlz",
       "//components/search_engines",
       "//rlz:rlz_lib",
     ]
   }
 }