gpu: Move GpuWatchdogThread into //gpu/ipc/service from content.

content/gpu/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/ui.gni")
 import("//media/media_options.gni")
 
 # See //content/BUILD.gn for how this works.
 group("gpu") {
   visibility = [ "//content/*" ]  # This is an internal content API.
@@ skipping 20 matching lines @@
   visibility = [ "//content/*" ]
 
   sources = [
     "gpu_child_thread.cc",
     "gpu_child_thread.h",
     "gpu_main.cc",
     "gpu_process.cc",
     "gpu_process.h",
     "gpu_service_factory.cc",
     "gpu_service_factory.h",
-    "gpu_watchdog_thread.cc",
-    "gpu_watchdog_thread.h",
     "in_process_gpu_thread.cc",
     "in_process_gpu_thread.h",
   ]
 
   configs += [ "//content:content_implementation" ]
 
   deps = [
     "//base",
     "//base/third_party/dynamic_annotations",
     "//components/tracing",
@@ skipping 48 matching lines @@
   }
 
   if (use_ozone) {
     deps += [ "//ui/ozone" ]
   }
 
   if (enable_vulkan) {
     deps += [ "//gpu/vulkan" ]
   }
 }