Revert of Move content/browser/power_save_blocker to //device/power_save_blocker

content/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/features.gni")
 import("//build/config/ui.gni")
 import("//content/browser/browser.gni")
 import("//media/media_options.gni")
 import("//tools/ipc_fuzzer/ipc_fuzzer.gni")
 
@@ skipping 39 matching lines @@
     "//content/browser/devtools:gen_devtools_protocol_handler",
     "//content/browser/devtools:resources",
     "//content/browser/notifications:notification_proto",
     "//content/browser/service_worker:service_worker_proto",
     "//content/browser/speech/proto",
     "//content/common",
     "//content/public/common:common_sources",
     "//crypto",
     "//device/battery",
     "//device/bluetooth",
-    "//device/power_save_blocker",
     "//device/vibration",
     "//gin",
     "//google_apis",
     "//gpu",
     "//gpu/command_buffer/client:gles2_implementation",
     "//gpu/command_buffer/client:gles2_interface",
     "//ipc/mojo",
     "//ipc/mojo:ipc_support",
     "//media",
     "//media/gpu/ipc/client",
@@ skipping 214 matching lines @@
       "//build/config/linux:glib",
     ]
   }
 
   if (is_linux && use_aura) {
     deps += [ "//build/linux:fontconfig" ]
   }
 
   if (use_x11) {
     configs += [ "//build/config/linux:x11" ]
+    if (!is_chromeos) {
+      configs += [ "//build/config/linux:xscrnsaver" ]
+    }
     deps += [ "//ui/gfx/x" ]
   }
 
+  # Dealing with power_save_blocker_{x11,ozone}.cc is a little complicated
+  # given the interaction between os_chromeos and the feature flags for X11 and
+  # ozone, so do it all in one spot.
+  if (is_chromeos || !use_ozone) {
+    sources -= [ "power_save_blocker_ozone.cc" ]
+  }
+  if (is_chromeos || !use_x11) {
+    sources -= [ "power_save_blocker_x11.cc" ]
+  }
+
   # Dealing with *wifi_data_provider_*.cc is also a bit complicated given
   # android, chromeos, linux and use_dbus.
   if (is_android) {
     sources -= [ "geolocation/wifi_data_provider_common.cc" ]
   }
   if (is_chromeos || (is_linux && !use_dbus)) {
     sources -= [ "geolocation/wifi_data_provider_linux.cc" ]
   }
   if (is_linux && use_dbus) {
     sources -= [ "geolocation/empty_wifi_data_provider.cc" ]
@@ skipping 209 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }