more video / projection refactoring yet

src/objects.js

@@ -1960,7 +1960,7 @@ SpriteMorph.prototype.getImageData = function () {
     return this.imageData.pixels;
 };
 
-SpriteMorph.prototype.videoSnap = function() {
+SpriteMorph.prototype.projectionSnap = function() {
     var stage = this.parentThatIsA(StageMorph),
         center = this.center().subtract(stage.position())
             .divideBy(stage.scale),
@@ -7352,7 +7352,7 @@ StageMorph.prototype.stopVideo = function() {
     this.clearProjectionLayer();
 };
 
-StageMorph.prototype.videoSnap = function() {
+StageMorph.prototype.projectionSnap = function() {
     var snap = newCanvas(this.dimensions, true),
         ctx = snap.getContext('2d');
     ctx.drawImage(this.projectionLayer(), 0, 0);

src/threads.js

@@ -4475,9 +4475,9 @@ Process.prototype.reportVideo = function(attribute, name) {
         return stage.videoMotion.motionDirection;
     case 'snap':
         if (thatObj instanceof SpriteMorph) {
-            return thatObj.videoSnap();
+            return thatObj.projectionSnap();
         }
-        return stage.videoSnap();
+        return stage.projectionSnap();
     }
     return -1;
 };