Remove need for _needsRedraw() calls by replacing it with a boolean flag.

src/item/Item.js

@@ -202,7 +202,7 @@ var Item = Base.extend(Callback, /** @lends Item# */{
 			this._clearBoundsCache();
 		}
 		if (flags & /*#=*/ ChangeFlag.APPEARANCE) {
-			this._project._needsRedraw();
+			this._project._needsRedraw = true;
 		}
 		// If this item is a symbol's definition, notify it of the change too
 		if (this._parentSymbol)

src/item/Layer.js

@@ -78,7 +78,7 @@ var Layer = Group.extend(/** @lends Layer# */{
 			Base.splice(this._project.layers, null, this._index, 1);
 			// Tell project we need a redraw. This is similar to _changed()
 			// mechanism.
-			this._project._needsRedraw();
+			this._project._needsRedraw = true;
 			return true;
 		}
 		return false;

src/project/Project.js

@@ -72,11 +72,6 @@ var Project = PaperScopeItem.extend(/** @lends Project# */{
 		return Base.serialize(this.layers, options, false, dictionary);
 	},
 
-	_needsRedraw: function() {
-		if (this.view)
-			this.view._redrawNeeded = true;
-	},
-
 	/**
 	 * Activates this project, so all newly created items will be placed
 	 * in it.

src/ui/CanvasView.js

@@ -44,7 +44,7 @@ var CanvasView = View.extend(/** @lends CanvasView# */{
 	 * @function
 	 */
 	draw: function(checkRedraw) {
-		if (checkRedraw && !this._redrawNeeded)
+		if (checkRedraw && !this._project._needsRedraw)
 			return false;
 		// Initial tests conclude that clearing the canvas using clearRect
 		// is always faster than setting canvas.width = canvas.width
@@ -53,7 +53,7 @@ var CanvasView = View.extend(/** @lends CanvasView# */{
 			size = this._viewSize;
 		ctx.clearRect(0, 0, size._width + 1, size._height + 1);
 		this._project.draw(ctx, this._matrix);
-		this._redrawNeeded = false;
+		this._project._needsRedraw = false;
 		return true;
 	}
 }, new function() { // Item based mouse handling:

src/ui/View.js

@@ -235,7 +235,7 @@ var View = Base.extend(Callback, /** @lends View# */{
 	},
 
 	_redraw: function() {
-		this._redrawNeeded = true;
+		this._project._needsRedraw = true;
 		if (this._handlingFrame)
 			return;
 		if (this._animate) {