chromeos: Pass suspend-delay description to powerd.

chromeos/dbus/power_manager_client.cc

 // Copyright (c) 2012 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.
 
 #include "chromeos/dbus/power_manager_client.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 10 matching lines @@
 #include "chromeos/dbus/power_supply_properties.pb.h"
 #include "chromeos/dbus/video_activity_update.pb.h"
 #include "dbus/bus.h"
 #include "dbus/message.h"
 #include "dbus/object_path.h"
 #include "dbus/object_proxy.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
 namespace chromeos {
 
+// Maximum amount of time that the power manager will wait for Chrome to
+// say that it's ready for the system to be suspended, in milliseconds.
 const int kSuspendDelayTimeoutMs = 5000;
 
+// Human-readable description of Chrome's suspend delay.
+const char kSuspendDelayDescription[] = "chrome";
+
 // The PowerManagerClient implementation used in production.
 class PowerManagerClientImpl : public PowerManagerClient {
  public:
   explicit PowerManagerClientImpl(dbus::Bus* bus)
       : origin_thread_id_(base::PlatformThread::CurrentId()),
         power_manager_proxy_(NULL),
         suspend_delay_id_(-1),
         has_suspend_delay_id_(false),
         pending_suspend_id_(-1),
         suspend_is_pending_(false),
@@ skipping 75 matching lines @@
     // Register to powerd for suspend notifications.
     dbus::MethodCall method_call(
         power_manager::kPowerManagerInterface,
         power_manager::kRegisterSuspendDelayMethod);
     dbus::MessageWriter writer(&method_call);
 
     power_manager::RegisterSuspendDelayRequest protobuf_request;
     base::TimeDelta timeout =
         base::TimeDelta::FromMilliseconds(kSuspendDelayTimeoutMs);
     protobuf_request.set_timeout(timeout.ToInternalValue());
+    protobuf_request.set_description(kSuspendDelayDescription);
 
     if (!writer.AppendProtoAsArrayOfBytes(protobuf_request)) {
       LOG(ERROR) << "Error constructing message for "
                  << power_manager::kRegisterSuspendDelayMethod;
       return;
     }
     power_manager_proxy_->CallMethod(
         &method_call,
         dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
         base::Bind(
@@ skipping 744 matching lines @@
 PowerManagerClient* PowerManagerClient::Create(
     DBusClientImplementationType type,
     dbus::Bus* bus) {
   if (type == REAL_DBUS_CLIENT_IMPLEMENTATION)
     return new PowerManagerClientImpl(bus);
   DCHECK_EQ(STUB_DBUS_CLIENT_IMPLEMENTATION, type);
   return new PowerManagerClientStubImpl();
 }
 
 }  // namespace chromeos