Bug 1100883: Replace most instances of |ToggleBtAck| with calls to |AcknowledgeToggleBt|, r=btian

|AcknowledgeToggleBt| completes a Bluetooth start or stop operation
in the context of |BluetoothService|; That was done by |ToggleBtAck|
before.

This patch replaces |ToggleBtAck| with calls to |AcknowledgeToggleBt|
in |BluetoothServiceBluedroid| for all the trivial cases.

dom/bluetooth/bluedroid/BluetoothServiceBluedroid.cpp

@@ -318,10 +318,7 @@ public:
 
     BT_LOGR("BluetoothInterface::Enable failed: %d", aStatus);
 
-    nsRefPtr<nsRunnable> runnable = new BluetoothService::ToggleBtAck(false);
-    if (NS_FAILED(NS_DispatchToMainThread(runnable))) {
-      BT_WARNING("Failed to dispatch to main thread!");
-    }
+    BluetoothService::AcknowledgeToggleBt(false);
   }
 };
 
@@ -394,10 +391,7 @@ public:
 
     sBtInterface = nullptr;
 
-    nsRefPtr<nsRunnable> runnable = new BluetoothService::ToggleBtAck(false);
-    if (NS_FAILED(NS_DispatchToMainThread(runnable))) {
-      BT_WARNING("Failed to dispatch to main thread!");
-    }
+    BluetoothService::AcknowledgeToggleBt(false);
   }
 };
 
@@ -413,10 +407,7 @@ BluetoothServiceBluedroid::StartGonkBluetooth()
 
   if (bs->IsEnabled()) {
     // Keep current enable status
-    nsRefPtr<nsRunnable> runnable = new BluetoothService::ToggleBtAck(true);
-    if (NS_FAILED(NS_DispatchToMainThread(runnable))) {
-      BT_WARNING("Failed to dispatch to main thread!");
-    }
+    BluetoothService::AcknowledgeToggleBt(true);
     return NS_OK;
   }
 
@@ -436,10 +427,7 @@ public:
 
     BT_LOGR("BluetoothInterface::Disable failed: %d", aStatus);
 
-    nsRefPtr<nsRunnable> runnable = new BluetoothService::ToggleBtAck(true);
-    if (NS_FAILED(NS_DispatchToMainThread(runnable))) {
-      BT_WARNING("Failed to dispatch to main thread!");
-    }
+    BluetoothService::AcknowledgeToggleBt(true);
   }
 };
 
@@ -455,10 +443,7 @@ BluetoothServiceBluedroid::StopGonkBluetooth()
 
   if (!bs->IsEnabled()) {
     // Keep current enable status
-    nsRefPtr<nsRunnable> runnable = new BluetoothService::ToggleBtAck(false);
-    if (NS_FAILED(NS_DispatchToMainThread(runnable))) {
-      BT_WARNING("Failed to dispatch to main thread!");
-    }
+    BluetoothService::AcknowledgeToggleBt(false);
     return NS_OK;
   }
 
@@ -518,11 +503,7 @@ BluetoothServiceBluedroid::StartInternal()
 
   nsresult ret = StartGonkBluetooth();
   if (NS_FAILED(ret)) {
-    nsRefPtr<nsRunnable> runnable =
-      new BluetoothService::ToggleBtAck(false);
-    if (NS_FAILED(NS_DispatchToMainThread(runnable))) {
-      BT_WARNING("Failed to dispatch to main thread!");
-    }
+    BluetoothService::AcknowledgeToggleBt(false);
     BT_LOGR("Error");
   }
 
@@ -536,11 +517,7 @@ BluetoothServiceBluedroid::StopInternal()
 
   nsresult ret = StopGonkBluetooth();
   if (NS_FAILED(ret)) {
-    nsRefPtr<nsRunnable> runnable =
-      new BluetoothService::ToggleBtAck(true);
-    if (NS_FAILED(NS_DispatchToMainThread(runnable))) {
-      BT_WARNING("Failed to dispatch to main thread!");
-    }
+    BluetoothService::AcknowledgeToggleBt(true);
     BT_LOGR("Error");
   }