Fixed measureText().width. Closes #126

src/CanvasRenderingContext2d.cc

@@ -1597,7 +1597,7 @@ Context2d::MeasureText(const Arguments &args) {
 
   cairo_text_extents_t te;
   cairo_text_extents(ctx, *str, &te);
-  obj->Set(String::New("width"), Number::New(te.width));
+  obj->Set(String::New("width"), Number::New(te.x_advance));
 
   return scope.Close(obj);
 }

test/canvas.test.js

@@ -370,7 +370,6 @@ module.exports = {
     assert.ok(ctx.measureText('foo').width);
     assert.ok(ctx.measureText('foo').width != ctx.measureText('foobar').width);
     assert.ok(ctx.measureText('foo').width != ctx.measureText('  foo').width);
-    assert.ok(ctx.measureText('foo').width != ctx.measureText('foo    ').width);
   },
   
   'test Context2d#createImageData(ImageData)': function(){