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

device/BUILD.gn

 # Copyright 2015 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("//testing/test.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")  # For generate_jni().
 }
@@ skipping 52 matching lines @@
     "vr/vr_device_manager_unittest.cc",
   ]
 
   deps = [
     "//base/test:test_support",
     "//device/battery",
     "//device/battery:mojo_bindings",
     "//device/bluetooth",
     "//device/bluetooth:mocks",
     "//device/nfc",
-    "//device/power_save_blocker",
     "//device/vr",
     "//device/vr:fakes",
     "//device/vr:mojo_bindings",
     "//mojo/common",
     "//mojo/edk/system",
     "//mojo/public/cpp/bindings",
     "//net",
     "//testing/gmock",
     "//testing/gtest",
     "//tools/usb_gadget",
@@ skipping 141 matching lines @@
   }
 
   android_library("bluetooth_test_java") {
     java_files = bluetooth_java_sources_needing_jni
     deps = [
       "//base:base_java",
       "//device/bluetooth:java",
     ]
   }
 }