WebGLRenderer: Clearer var name.

src/renderers/WebGLRenderer.js

@@ -2691,7 +2691,7 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 		} else if ( object instanceof THREE.Line ) {
 
-			var primitives = ( object.type === THREE.LineStrip ) ? _gl.LINE_STRIP : _gl.LINES;
+			var mode = ( object.type === THREE.LineStrip ) ? _gl.LINE_STRIP : _gl.LINES;
 
 			setLineWidth( material.linewidth );
 
@@ -2773,7 +2773,7 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 				var position = geometryAttributes[ "position" ];
 
-				_gl.drawArrays( primitives, 0, position.array.length / 3 );
+				_gl.drawArrays( mode, 0, position.array.length / 3 );
 
 				_this.info.render.calls ++;
 				_this.info.render.points += position.array.length / 3;
@@ -2992,11 +2992,11 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 		} else if ( object instanceof THREE.Line ) {
 
-			var primitives = ( object.type === THREE.LineStrip ) ? _gl.LINE_STRIP : _gl.LINES;
+			var mode = ( object.type === THREE.LineStrip ) ? _gl.LINE_STRIP : _gl.LINES;
 
 			setLineWidth( material.linewidth );
 
-			_gl.drawArrays( primitives, 0, geometryGroup.__webglLineCount );
+			_gl.drawArrays( mode, 0, geometryGroup.__webglLineCount );
 
 			_this.info.render.calls ++;