ash: Remove media dependency from ash.

chrome/browser/chromeos/accessibility/accessibility_manager.h

Index: chrome/browser/chromeos/accessibility/accessibility_manager.h
diff --git a/chrome/browser/chromeos/accessibility/accessibility_manager.h b/chrome/browser/chromeos/accessibility/accessibility_manager.h
index 10db2c84448344b698ac0611aa20727a065b9198..e35e5d37ae7e51986a83fb5417456e6afd9d2d32 100644
--- a/chrome/browser/chromeos/accessibility/accessibility_manager.h
+++ b/chrome/browser/chromeos/accessibility/accessibility_manager.h
@@ -76,6 +76,13 @@ typedef AccessibilityStatusCallbackList::Subscription
 
 class ChromeVoxPanelWidgetObserver;
 
+enum class PlaySoundOption {
+  ALWAYS = 0,               // The sound is always played.
+  SPOKEN_FEEDBACK_ENABLED,  // The sound is played only if spoken feedback is
+                            // enabled, or --ash-enable-system-sounds flag is
+                            // used.
+};
+
 // AccessibilityManager changes the statuses of accessibility features
 // watching profile notifications and pref-changes.
 // TODO(yoshiki): merge MagnificationManager with AccessibilityManager.
@@ -244,7 +251,7 @@ class AccessibilityManager
   // Plays an earcon. Earcons are brief and distinctive sounds that indicate
   // when their mapped event has occurred. The sound key enums can be found in
   // chromeos/audio/chromeos_sounds.h.
-  void PlayEarcon(int sound_key);
+  bool PlayEarcon(int sound_key, PlaySoundOption option);
 
   // Forward an accessibility gesture from the touch exploration controller
   // to ChromeVox.