Add versions of isPointIn*() that take a Path parameter.

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');
 
-// Create the image for blending test with images.
-var img = document.createElement('canvas');
-img.width = 100;
-img.height = 100;
-var imgCtx = img.getContext('2d');
-
 // Execute test.
 function prepareTestScenario() {
     debug('Testing default isPointInPath');
     ctx.beginPath();
     ctx.rect(0, 0, 100, 100);
     ctx.rect(25, 25, 50, 50);
-    shouldBeTrue("ctx.isPointInPath(50, 50)");             
+    shouldBeTrue("ctx.isPointInPath(50, 50)");
     debug('');
 
     debug('Testing nonzero isPointInPath');
     ctx.beginPath();
     ctx.rect(0, 0, 100, 100);
     ctx.rect(25, 25, 50, 50);
     shouldBeTrue("ctx.isPointInPath(50, 50, 'nonzero')");
     debug('');
         
     debug('Testing evenodd isPointInPath');
     ctx.beginPath();
     ctx.rect(0, 0, 100, 100);
     ctx.rect(25, 25, 50, 50);
-    shouldBeFalse("ctx.isPointInPath(50, 50, 'evenodd')");             
+    shouldBeFalse("ctx.isPointInPath(50, 50, 'evenodd')");
+    debug('');
+
+    // reset path in context
+    ctx.beginPath();
+
+    debug('Testing default isPointInPath with Path object');
+    path = new Path();
+    path.rect(0, 0, 100, 100);
+    path.rect(25, 25, 50, 50);
+    shouldBeTrue("ctx.isPointInPath(path, 50, 50)");
+    debug('');
+
+    debug('Testing nonzero isPointInPath with Path object');
+    path = new Path();
+    path.rect(0, 0, 100, 100);
+    path.rect(25, 25, 50, 50);
+    shouldBeTrue("ctx.isPointInPath(path, 50, 50, 'nonzero')");
+    debug('');
+
+    debug('Testing evenodd isPointInPath with Path object');
+    path = new Path();
+    path.rect(0, 0, 100, 100);
+    path.rect(25, 25, 50, 50);
+    shouldBeFalse("ctx.isPointInPath(path, 50, 50, 'evenodd')");
     debug('');
 }
 
 // Run test and allow variation of results.
 prepareTestScenario();