mash: Move TrayTracing to //ash/common/system/chromeos

ash/common/system/tray/wm_system_tray_notifier.cc

 // Copyright 2016 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 "ash/common/system/tray/wm_system_tray_notifier.h"
 
 #include "ash/common/system/accessibility_observer.h"
 #include "ash/common/system/audio/audio_observer.h"
 #include "ash/common/system/date/clock_observer.h"
 #include "ash/common/system/ime/ime_observer.h"
 #include "ash/common/system/update/update_observer.h"
 
 #if defined(OS_CHROMEOS)
+#include "ash/common/system/chromeos/tray_tracing.h"
 #include "ash/common/system/chromeos/virtual_keyboard/virtual_keyboard_observer.h"
 #endif
 
 namespace ash {
 
 WmSystemTrayNotifier::WmSystemTrayNotifier() {}
 
 WmSystemTrayNotifier::~WmSystemTrayNotifier() {}
 
 void WmSystemTrayNotifier::AddAccessibilityObserver(
@@ skipping 116 matching lines @@
   update_observers_.RemoveObserver(observer);
 }
 
 void WmSystemTrayNotifier::NotifyUpdateRecommended(const UpdateInfo& info) {
   FOR_EACH_OBSERVER(UpdateObserver, update_observers_,
                     OnUpdateRecommended(info));
 }
 
 #if defined(OS_CHROMEOS)
 
+void WmSystemTrayNotifier::AddTracingObserver(TracingObserver* observer) {
+  tracing_observers_.AddObserver(observer);
+}
+
+void WmSystemTrayNotifier::RemoveTracingObserver(TracingObserver* observer) {
+  tracing_observers_.RemoveObserver(observer);
+}
+
+void WmSystemTrayNotifier::NotifyTracingModeChanged(bool value) {
+  FOR_EACH_OBSERVER(TracingObserver, tracing_observers_,
+                    OnTracingModeChanged(value));
+}
+
 void WmSystemTrayNotifier::AddVirtualKeyboardObserver(
     VirtualKeyboardObserver* observer) {
   virtual_keyboard_observers_.AddObserver(observer);
 }
 
 void WmSystemTrayNotifier::RemoveVirtualKeyboardObserver(
     VirtualKeyboardObserver* observer) {
   virtual_keyboard_observers_.RemoveObserver(observer);
 }
 
 void WmSystemTrayNotifier::NotifyVirtualKeyboardSuppressionChanged(
     bool suppressed) {
   FOR_EACH_OBSERVER(VirtualKeyboardObserver, virtual_keyboard_observers_,
                     OnKeyboardSuppressionChanged(suppressed));
 }
 
 #endif  // defined(OS_CHROMEOS)
 
 }  // namespace ash