[DevTools] Removed InspectorTest.invokePageFunctionPromise from protocol tests

third_party/WebKit/LayoutTests/inspector-protocol/animation/animation-seek-past-end.html

Index: third_party/WebKit/LayoutTests/inspector-protocol/animation/animation-seek-past-end.html
diff --git a/third_party/WebKit/LayoutTests/inspector-protocol/animation/animation-seek-past-end.html b/third_party/WebKit/LayoutTests/inspector-protocol/animation/animation-seek-past-end.html
index d545d124b17859bbc5b36a6d5e51e32b974b67cf..9bdbe55f4a29188abd0e7289db9a17d90869a502 100644
--- a/third_party/WebKit/LayoutTests/inspector-protocol/animation/animation-seek-past-end.html
+++ b/third_party/WebKit/LayoutTests/inspector-protocol/animation/animation-seek-past-end.html
@@ -9,13 +9,11 @@ function startAnimation()
 
 function rafWidth(resolve, reject)
 {
-    function frameCallback()
-    {
-        resolve(node.offsetWidth);
-    }
-
+    var callback;
+    var promise = new Promise((fulfill) => callback = fulfill);
     if (window.testRunner)
-        testRunner.layoutAndPaintAsyncThen(frameCallback);
+        testRunner.layoutAndPaintAsyncThen(() => callback(node.offsetWidth));
+    return promise;
 }
 
 function test()
@@ -37,10 +35,9 @@ function test()
 
     function logWidth()
     {
-        InspectorTest.invokePageFunctionPromise("rafWidth", []).then(function(result) {
-            InspectorTest.log(result);
-            InspectorTest.completeTest();
-        });
+        InspectorTest.evaluateInPageAsync("rafWidth()")
+            .then((result) => InspectorTest.log(result))
+            .then(() => InspectorTest.completeTest());
     }
 }