From 63522e8e280a1b76a96be6095e8f9d92882a45e7 Mon Sep 17 00:00:00 2001
From: Gabriele Svelto <gsvelto@mozilla.com>
Date: Mon, 11 Jun 2018 00:22:56 +0200
Subject: Remove unused code for managing physical audio devices.

This was only used in B2G/Gonk and can go.
---
 hal/Hal.cpp | 90 -------------------------------------------------------------
 1 file changed, 90 deletions(-)

(limited to 'hal/Hal.cpp')

diff --git a/hal/Hal.cpp b/hal/Hal.cpp
index 8ac9e6847..16201a2d8 100644
--- a/hal/Hal.cpp
+++ b/hal/Hal.cpp
@@ -754,96 +754,6 @@ UnlockScreenOrientation()
   PROXY_IF_SANDBOXED(UnlockScreenOrientation());
 }
 
-void
-EnableSwitchNotifications(SwitchDevice aDevice) {
-  AssertMainThread();
-  PROXY_IF_SANDBOXED(EnableSwitchNotifications(aDevice));
-}
-
-void
-DisableSwitchNotifications(SwitchDevice aDevice) {
-  AssertMainThread();
-  PROXY_IF_SANDBOXED(DisableSwitchNotifications(aDevice));
-}
-
-SwitchState GetCurrentSwitchState(SwitchDevice aDevice)
-{
-  AssertMainThread();
-  RETURN_PROXY_IF_SANDBOXED(GetCurrentSwitchState(aDevice), SWITCH_STATE_UNKNOWN);
-}
-
-void NotifySwitchStateFromInputDevice(SwitchDevice aDevice, SwitchState aState)
-{
-  AssertMainThread();
-  PROXY_IF_SANDBOXED(NotifySwitchStateFromInputDevice(aDevice, aState));
-}
-
-typedef mozilla::ObserverList<SwitchEvent> SwitchObserverList;
-
-static SwitchObserverList *sSwitchObserverLists = nullptr;
-
-static SwitchObserverList&
-GetSwitchObserverList(SwitchDevice aDevice) {
-  MOZ_ASSERT(0 <= aDevice && aDevice < NUM_SWITCH_DEVICE);
-  if (sSwitchObserverLists == nullptr) {
-    sSwitchObserverLists = new SwitchObserverList[NUM_SWITCH_DEVICE];
-  }
-  return sSwitchObserverLists[aDevice];
-}
-
-static void
-ReleaseObserversIfNeeded() {
-  for (int i = 0; i < NUM_SWITCH_DEVICE; i++) {
-    if (sSwitchObserverLists[i].Length() != 0)
-      return;
-  }
-
-  //The length of every list is 0, no observer in the list.
-  delete [] sSwitchObserverLists;
-  sSwitchObserverLists = nullptr;
-}
-
-void
-RegisterSwitchObserver(SwitchDevice aDevice, SwitchObserver *aObserver)
-{
-  AssertMainThread();
-  SwitchObserverList& observer = GetSwitchObserverList(aDevice);
-  observer.AddObserver(aObserver);
-  if (observer.Length() == 1) {
-    EnableSwitchNotifications(aDevice);
-  }
-}
-
-void
-UnregisterSwitchObserver(SwitchDevice aDevice, SwitchObserver *aObserver)
-{
-  AssertMainThread();
-
-  if (!sSwitchObserverLists) {
-    return;
-  }
-
-  SwitchObserverList& observer = GetSwitchObserverList(aDevice);
-  if (!observer.RemoveObserver(aObserver) || observer.Length() > 0) {
-    return;
-  }
-
-  DisableSwitchNotifications(aDevice);
-  ReleaseObserversIfNeeded();
-}
-
-void
-NotifySwitchChange(const SwitchEvent& aEvent)
-{
-  // When callback this notification, main thread may call unregister function
-  // first. We should check if this pointer is valid.
-  if (!sSwitchObserverLists)
-    return;
-
-  SwitchObserverList& observer = GetSwitchObserverList(aEvent.device());
-  observer.Broadcast(aEvent);
-}
-
 static AlarmObserver* sAlarmObserver;
 
 bool
-- 
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