diff --git proxy_config_service_linux.cc proxy_config_service_linux.cc
index e0a9372..be8068d 100644
--- proxy_config_service_linux.cc
+++ proxy_config_service_linux.cc
@@ -202,8 +202,11 @@ const int kDebounceTimeoutMilliseconds = 250;
 class SettingGetterImplGConf : public ProxyConfigServiceLinux::SettingGetter {
  public:
   SettingGetterImplGConf()
-      : client_(NULL), system_proxy_id_(0), system_http_proxy_id_(0),
-        notify_delegate_(NULL) {
+      : client_(NULL),
+        system_proxy_id_(0),
+        system_http_proxy_id_(0),
+        notify_delegate_(NULL),
+        debounce_timer_(new base::OneShotTimer<SettingGetterImplGConf>()) {
   }
 
   ~SettingGetterImplGConf() override {
@@ -287,6 +290,7 @@ class SettingGetterImplGConf : public ProxyConfigServiceLinux::SettingGetter {
       client_ = NULL;
       task_runner_ = NULL;
     }
+    debounce_timer_.reset();
   }
 
   bool SetUpNotifications(
@@ -475,8 +479,8 @@ class SettingGetterImplGConf : public ProxyConfigServiceLinux::SettingGetter {
   void OnChangeNotification() {
     // We don't use Reset() because the timer may not yet be running.
     // (In that case Stop() is a no-op.)
-    debounce_timer_.Stop();
-    debounce_timer_.Start(FROM_HERE,
+    debounce_timer_->Stop();
+    debounce_timer_->Start(FROM_HERE,
         base::TimeDelta::FromMilliseconds(kDebounceTimeoutMilliseconds),
         this, &SettingGetterImplGConf::OnDebouncedNotification);
   }
@@ -499,7 +503,7 @@ class SettingGetterImplGConf : public ProxyConfigServiceLinux::SettingGetter {
   guint system_http_proxy_id_;
 
   ProxyConfigServiceLinux::Delegate* notify_delegate_;
-  base::OneShotTimer<SettingGetterImplGConf> debounce_timer_;
+  scoped_ptr<base::OneShotTimer<SettingGetterImplGConf> > debounce_timer_;
 
   // Task runner for the thread that we make gconf calls on. It should
   // be the UI thread and all our methods should be called on this
@@ -523,7 +527,8 @@ class SettingGetterImplGSettings
     https_client_(NULL),
     ftp_client_(NULL),
     socks_client_(NULL),
-    notify_delegate_(NULL) {
+    notify_delegate_(NULL),
+    debounce_timer_(new base::OneShotTimer<SettingGetterImplGSettings>()) {
   }
 
   ~SettingGetterImplGSettings() override {
@@ -598,6 +603,7 @@ class SettingGetterImplGSettings
       client_ = NULL;
       task_runner_ = NULL;
     }
+    debounce_timer_.reset();
   }
 
   bool SetUpNotifications(
@@ -746,8 +752,8 @@ class SettingGetterImplGSettings
   void OnChangeNotification() {
     // We don't use Reset() because the timer may not yet be running.
     // (In that case Stop() is a no-op.)
-    debounce_timer_.Stop();
-    debounce_timer_.Start(FROM_HERE,
+    debounce_timer_->Stop();
+    debounce_timer_->Start(FROM_HERE,
         base::TimeDelta::FromMilliseconds(kDebounceTimeoutMilliseconds),
         this, &SettingGetterImplGSettings::OnDebouncedNotification);
   }
@@ -768,7 +774,7 @@ class SettingGetterImplGSettings
   GSettings* ftp_client_;
   GSettings* socks_client_;
   ProxyConfigServiceLinux::Delegate* notify_delegate_;
-  base::OneShotTimer<SettingGetterImplGSettings> debounce_timer_;
+  scoped_ptr<base::OneShotTimer<SettingGetterImplGSettings> > debounce_timer_;
 
   // Task runner for the thread that we make gsettings calls on. It should
   // be the UI thread and all our methods should be called on this
@@ -852,9 +858,14 @@ class SettingGetterImplKDE : public ProxyConfigServiceLinux::SettingGetter,
                              public base::MessagePumpLibevent::Watcher {
  public:
   explicit SettingGetterImplKDE(base::Environment* env_var_getter)
-      : inotify_fd_(-1), notify_delegate_(NULL), indirect_manual_(false),
-        auto_no_pac_(false), reversed_bypass_list_(false),
-        env_var_getter_(env_var_getter), file_task_runner_(NULL) {
+      : inotify_fd_(-1),
+        notify_delegate_(NULL),
+        debounce_timer_(new base::OneShotTimer<SettingGetterImplKDE>()),
+        indirect_manual_(false),
+        auto_no_pac_(false),
+        reversed_bypass_list_(false),
+        env_var_getter_(env_var_getter),
+        file_task_runner_(NULL) {
     // This has to be called on the UI thread (http://crbug.com/69057).
     base::ThreadRestrictions::ScopedAllowIO allow_io;
 
@@ -956,6 +967,7 @@ class SettingGetterImplKDE : public ProxyConfigServiceLinux::SettingGetter,
       close(inotify_fd_);
       inotify_fd_ = -1;
     }
+    debounce_timer_.reset();
   }
 
   bool SetUpNotifications(
@@ -1305,8 +1317,8 @@ class SettingGetterImplKDE : public ProxyConfigServiceLinux::SettingGetter,
     if (kioslaverc_touched) {
       // We don't use Reset() because the timer may not yet be running.
       // (In that case Stop() is a no-op.)
-      debounce_timer_.Stop();
-      debounce_timer_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(
+      debounce_timer_->Stop();
+      debounce_timer_->Start(FROM_HERE, base::TimeDelta::FromMilliseconds(
           kDebounceTimeoutMilliseconds), this,
           &SettingGetterImplKDE::OnDebouncedNotification);
     }
@@ -1319,7 +1331,7 @@ class SettingGetterImplKDE : public ProxyConfigServiceLinux::SettingGetter,
   int inotify_fd_;
   base::MessagePumpLibevent::FileDescriptorWatcher inotify_watcher_;
   ProxyConfigServiceLinux::Delegate* notify_delegate_;
-  base::OneShotTimer<SettingGetterImplKDE> debounce_timer_;
+  scoped_ptr<base::OneShotTimer<SettingGetterImplKDE> > debounce_timer_;
   base::FilePath kde_config_dir_;
   bool indirect_manual_;
   bool auto_no_pac_;