Reland of 'Move content/browser/power_save_blocker to //device/power_save_blocker'

device/power_save_blocker/power_save_blocker_chromeos.cc

Index: device/power_save_blocker/power_save_blocker_chromeos.cc
diff --git a/content/browser/power_save_blocker_chromeos.cc b/device/power_save_blocker/power_save_blocker_chromeos.cc
similarity index 97%
rename from content/browser/power_save_blocker_chromeos.cc
rename to device/power_save_blocker/power_save_blocker_chromeos.cc
index 2913f093c0f59ffcabbec5c3507708aa559c50ba..31803583c0d322d2527c7850f131f5675893830c 100644
--- a/content/browser/power_save_blocker_chromeos.cc
+++ b/device/power_save_blocker/power_save_blocker_chromeos.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/browser/power_save_blocker_impl.h"
+#include "device/power_save_blocker/power_save_blocker_impl.h"
 
 #include <string>
 
@@ -13,7 +13,7 @@
 #include "base/memory/ref_counted.h"
 #include "chromeos/dbus/power_policy_controller.h"
 
-namespace content {
+namespace device {
 
 namespace {
 
@@ -109,4 +109,4 @@ PowerSaveBlockerImpl::~PowerSaveBlockerImpl() {
                             base::Bind(&Delegate::RemoveBlock, delegate_));
 }
 
-}  // namespace content
+}  // namespace device