Move UndoStack from Page to Editor

third_party/WebKit/LayoutTests/editing/undo/undo-iframe-location-change.html

Index: third_party/WebKit/LayoutTests/editing/undo/undo-iframe-location-change.html
diff --git a/third_party/WebKit/LayoutTests/editing/undo/undo-iframe-location-change.html b/third_party/WebKit/LayoutTests/editing/undo/undo-iframe-location-change.html
index 6b7aa2c2a280a7ec6ddfa73c5aaf1b622fb18015..f2c9888eb69f13fbbb816fde0743128fa5c31491 100644
--- a/third_party/WebKit/LayoutTests/editing/undo/undo-iframe-location-change.html
+++ b/third_party/WebKit/LayoutTests/editing/undo/undo-iframe-location-change.html
@@ -12,7 +12,7 @@ function log(message) {
 function part1() {

[yosin_UTC9, 2016/07/01 09:21:21]

Optional: Could you convert this test to use w3c test harness to get rid of
undo-iframe-location-change-expected.html and upstream to w3c test repository.
Example: http://crrev.com/2010333003

[Xiaocheng, 2016/07/04 06:29:23]

Done.

     frames['iframe'].document.body.focus();
     
-    // Hack to perform the editing command.  Should be able to 
+    // Hack to perform the editing command.  Should not be able to 

[yosin_UTC9, 2016/07/01 09:21:21]

How about just say "Call execCommand for subframe document rather than main
window"?
Or better English statement. ;-)

[Xiaocheng, 2016/07/04 06:29:23]

Done (kind of).

     // call execCommand on the main document.
     frames['iframe'].document.execCommand('InsertText', false, 'c');
 
@@ -23,8 +23,8 @@ function part1() {
         return;
     }
 
-    if (!document.queryCommandEnabled('Undo')) {
-        log("FAIL: Undo is not enabled after text insertion.");
+    if (document.queryCommandEnabled('Undo')) {
+        log("FAIL: Undo is enabled in main document after text insertion in subframe.");
         if (window.testRunner)
             testRunner.notifyDone();
         return;
@@ -40,7 +40,7 @@ function part2() {
     if (!document.queryCommandEnabled('Undo'))
         log("Success");
     else
-        log("Failure, Undo was still enabled after the location changed (but at least we didn't crash!)");
+        log("Failure, Undo is enabled after the location changed (but at least we didn't crash!)");
         
     if (window.testRunner)
         testRunner.notifyDone();