SL-16339 Rename setAmbient to not cause confusion

setAmbient has nothing to do with ambient sounds

indra/llaudio/llaudioengine.cpp

@@ -831,7 +831,8 @@ void LLAudioEngine::triggerSound(const LLUUID &audio_uuid, const LLUUID& owner_i
 	addAudioSource(asp);
 	if (pos_global.isExactlyZero())
 	{
-		asp->setAmbient(true);
+		// For sound preview and UI
+		asp->setForcedPriority(true);
 	}
 	else
 	{
@@ -1278,7 +1279,7 @@ LLAudioSource::LLAudioSource(const LLUUID& id, const LLUUID& owner_id, const F32
 	mPriority(0.f),
 	mGain(gain),
 	mSourceMuted(false),
-	mAmbient(false),
+	mForcedPriority(false),
 	mLoop(false),
 	mSyncMaster(false),
 	mSyncSlave(false),
@@ -1344,7 +1345,7 @@ void LLAudioSource::update()
 
 void LLAudioSource::updatePriority()
 {
-	if (isAmbient())
+	if (isForcedPriority())
 	{
 		mPriority = 1.f;
 	}

indra/llaudio/llaudioengine.h

@@ -277,8 +277,8 @@ public:
 
 	void addAudioData(LLAudioData *adp, bool set_current = TRUE);
 
-	void setAmbient(const bool ambient)						{ mAmbient = ambient; }
-	bool isAmbient() const									{ return mAmbient; }
+	void setForcedPriority(const bool ambient)						{ mForcedPriority = ambient; }
+	bool isForcedPriority() const									{ return mForcedPriority; }
 
 	void setLoop(const bool loop)							{ mLoop = loop; }
 	bool isLoop() const										{ return mLoop; }
@@ -331,7 +331,7 @@ protected:
 	F32				mPriority;
 	F32				mGain;
 	bool			mSourceMuted;
-	bool			mAmbient;
+	bool			mForcedPriority; // ignore mute, set high priority, researved for sound preview and UI
 	bool			mLoop;
 	bool			mSyncMaster;
 	bool			mSyncSlave;

indra/llaudio/llaudioengine_fmodstudio.cpp

@@ -519,9 +519,9 @@ void LLAudioChannelFMODSTUDIO::update3DPosition()
         return;
     }
 
-    if (mCurrentSourcep->isAmbient())
+    if (mCurrentSourcep->isForcedPriority())
     {
-        // Ambient sound, don't need to do any positional updates.
+        // Prioritized UI and preview sounds don't need to do any positional updates.
         set3DMode(false);
     }
     else