Delete unused file faketaskrunner.h.

webrtc/base/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/crypto.gni")
 import("//build/config/ui.gni")
@@ skipping 717 matching lines @@
 
   rtc_source_set("rtc_base_tests_utils") {
     testonly = true
     sources = [
       # Also use this as a convenient dumping ground for misc files that are
       # included by multiple targets below.
       "fakeclock.cc",
       "fakeclock.h",
       "fakenetwork.h",
       "fakesslidentity.h",
-      "faketaskrunner.h",
       "firewallsocketserver.cc",
       "firewallsocketserver.h",
       "gunit.h",
       "natserver.cc",
       "natserver.h",
       "natsocketfactory.cc",
       "natsocketfactory.h",
       "nattypes.cc",
       "nattypes.h",
       "sigslottester.h",
@@ skipping 201 matching lines @@
       "java/src/org/webrtc/Logging.java",
       "java/src/org/webrtc/Size.java",
       "java/src/org/webrtc/ThreadUtils.java",
     ]
 
     deps = [
       "//base:base_java",
     ]
   }
 }