Move ThreadWrapper to ProcessThread in base.

webrtc/system_wrappers/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("//build/config/android/config.gni")
 import("../build/webrtc.gni")
@@ skipping 19 matching lines @@
     "include/metrics.h",
     "include/ref_count.h",
     "include/rtp_to_ntp.h",
     "include/rw_lock_wrapper.h",
     "include/scoped_vector.h",
     "include/sleep.h",
     "include/sort.h",
     "include/static_instance.h",
     "include/stl_util.h",
     "include/stringize_macros.h",
-    "include/thread_wrapper.h",
     "include/tick_util.h",
     "include/timestamp_extrapolator.h",
     "include/trace.h",
     "include/utf_util_win.h",
     "source/aligned_malloc.cc",
     "source/atomic32_mac.cc",
     "source/atomic32_win.cc",
     "source/clock.cc",
     "source/condition_variable.cc",
     "source/condition_variable_event_win.cc",
@@ skipping 21 matching lines @@
     "source/rtp_to_ntp.cc",
     "source/rw_lock.cc",
     "source/rw_lock_generic.cc",
     "source/rw_lock_generic.h",
     "source/rw_lock_posix.cc",
     "source/rw_lock_posix.h",
     "source/rw_lock_win.cc",
     "source/rw_lock_win.h",
     "source/sleep.cc",
     "source/sort.cc",
-    "source/thread.cc",
-    "source/thread_posix.cc",
-    "source/thread_posix.h",
-    "source/thread_win.cc",
-    "source/thread_win.h",
     "source/tick_util.cc",
     "source/timestamp_extrapolator.cc",
     "source/trace_impl.cc",
     "source/trace_impl.h",
     "source/trace_posix.cc",
     "source/trace_posix.h",
     "source/trace_win.cc",
     "source/trace_win.h",
   ]
 
@@ skipping 89 matching lines @@
 
   configs += [ "..:common_config" ]
   public_configs = [ "..:common_inherited_config" ]
 }
 
 source_set("system_wrappers_default") {
   configs += [ "..:common_config" ]
   public_configs = [ "..:common_inherited_config" ]
 
   deps = [
-    ":system_wrappers",
     ":field_trial_default",
     ":metrics_default",
+    ":system_wrappers",
   ]
 }
 
 if (is_android) {
   source_set("cpu_features_android") {
     sources = [
       "source/cpu_features_android.c",
     ]
 
     configs += [ "..:common_config" ]
     public_configs = [ "..:common_inherited_config" ]
     deps = [
       "//third_party/android_tools:cpu_features",
     ]
   }
 }