bindings: Ignores the last undefined arguments when counting the args.

third_party/WebKit/LayoutTests/fast/canvas/script-tests/canvas-isPointInPath-winding.js

 description("Series of tests to ensure correct results of the winding rule in isPointInPath.");
 
 var tmpimg = document.createElement('canvas');
 tmpimg.width = 200;
 tmpimg.height = 200;
 ctx = tmpimg.getContext('2d');
 
 // Execute test.
 function prepareTestScenario() {
     debug('Testing default isPointInPath');
@@ skipping 20 matching lines @@
     debug('');
 
     // reset path in context
     ctx.beginPath();
 
     debug('Testing default isPointInPath with Path object');
     path = new Path2D();
     path.rect(0, 0, 100, 100);
     path.rect(25, 25, 50, 50);
     shouldBeTrue("ctx.isPointInPath(path, 50, 50)");
+    shouldBeTrue("ctx.isPointInPath(path, 50, 50, undefined)");
     shouldBeFalse("ctx.isPointInPath(path, NaN, 50)");
     shouldBeFalse("ctx.isPointInPath(path, 50, NaN)");
     debug('');
 
     debug('Testing nonzero isPointInPath with Path object');
     path = new Path2D();
     path.rect(0, 0, 100, 100);
     path.rect(25, 25, 50, 50);
     shouldBeTrue("ctx.isPointInPath(path, 50, 50, 'nonzero')");
     debug('');
@@ skipping 13 matching lines @@
     debug('Testing invalid type isPointInPath with Path object');
     shouldThrow("ctx.isPointInPath(null, 50, 50)");
     shouldThrow("ctx.isPointInPath(null, 50, 50, 'nonzero')");
     shouldThrow("ctx.isPointInPath(null, 50, 50, 'evenodd')");
     shouldThrow("ctx.isPointInPath(null, 50, 50, null)");
     shouldThrow("ctx.isPointInPath(path, 50, 50, null)");
     shouldThrow("ctx.isPointInPath(undefined, 50, 50)");
     shouldThrow("ctx.isPointInPath(undefined, 50, 50, 'nonzero')");
     shouldThrow("ctx.isPointInPath(undefined, 50, 50, 'evenodd')");
     shouldThrow("ctx.isPointInPath(undefined, 50, 50, undefined)");
-    shouldThrow("ctx.isPointInPath(path, 50, 50, undefined)");
     shouldThrow("ctx.isPointInPath([], 50, 50)");
     shouldThrow("ctx.isPointInPath([], 50, 50, 'nonzero')");
     shouldThrow("ctx.isPointInPath([], 50, 50, 'evenodd')");
     shouldThrow("ctx.isPointInPath({}, 50, 50)");
     shouldThrow("ctx.isPointInPath({}, 50, 50, 'nonzero')");
     shouldThrow("ctx.isPointInPath({}, 50, 50, 'evenodd')");
     debug('');
 
     debug("Testing extremely large scale")
     ctx.save();
     ctx.scale(Number.MAX_VALUE, Number.MAX_VALUE);
     ctx.beginPath();
     ctx.rect(-10, -10, 20, 20);
     shouldBeTrue("ctx.isPointInPath(0, 0, 'nonzero')");
     shouldBeTrue("ctx.isPointInPath(0, 0, 'evenodd')");
     ctx.restore();
 
     debug("Check with non-invertible ctm.")
     ctx.save();
     ctx.scale(0, 0);
     ctx.beginPath();
     ctx.rect(-10, -10, 20, 20);
     shouldBeFalse("ctx.isPointInPath(0, 0, 'nonzero')");
     shouldBeFalse("ctx.isPointInPath(0, 0, 'evenodd')");
     ctx.restore();
 }
 
 // Run test and allow variation of results.
 prepareTestScenario();