Fix issues that broke editing on browsers without Shadow DOM support.

dart/tests/try/safari.applescript

+-- Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+-- for details. All rights reserved. Use of this source code is governed by a
+-- BSD-style license that can be found in the LICENSE file.
+
+tell application "Safari" to activate
+
+delay 3.0
+
+tell application "System Events"
+
+        keystroke "n" using command down
+
+        delay 1.0
+
+        keystroke "l" using command down
+
+        keystroke "http://localhost:8080/"
+        -- Simulate Enter key.
+        key code 36
+
+        delay 5.0
+
+        keystroke "l" using command down
+        -- Simulate Tab key.
+        key code 48
+        key code 48
+
+        delay 0.2
+
+        -- Simulate Down.
+        key code 125
+
+        delay 0.2
+
+        -- Simulate Down.
+        key code 125
+
+        delay 0.2
+
+        -- Simulate Enter key.
+        key code 36
+
+        delay 0.2
+
+        -- Simulate Tab key.
+        key code 48
+
+        -- Simulate Cmd-Up.
+        key code 126 using command down
+
+        -- Simulate Down.
+        key code 125
+        key code 125
+        key code 125
+        key code 125
+        key code 125
+
+        -- Simulate Cmd-Right.
+        key code 124 using command down
+
+        -- Simulate Delete
+        key code 51
+
+        delay 0.1
+        keystroke "a" using command down
+        delay 0.2
+        keystroke "c" using command down
+
+        delay 0.2
+        set clipboardData to (the clipboard as text)
+
+        if ("main() {" is in (clipboardData as string)) then
+                error "main() { in clipboardData"
+        end if
+
+        if ("main() " is not in (clipboardData as string)) then
+                error "main() is not in clipboardData"
+        end if
+
+        keystroke "l" using command down
+        delay 0.2
+
+        keystroke "http://localhost:8080/"
+        -- Simulate Enter key.
+        key code 36
+
+        delay 5.0
+
+        keystroke "l" using command down
+        -- Simulate Tab key.
+        key code 48
+        key code 48
+
+        delay 0.2
+
+        -- Simulate Down.
+        key code 125
+
+        delay 0.2
+
+        -- Simulate Down.
+        key code 125
+
+        delay 0.2
+
+        -- Simulate Enter key.
+        key code 36
+
+        delay 0.2
+
+        -- Simulate Tab key.
+        key code 48
+
+        -- Simulate Cmd-Down.
+        key code 125 using command down
+
+        repeat 203 times
+                -- Simulate Delete
+               key code 51
+        end repeat
+        delay 5.0
+        repeat 64 times
+                -- Simulate Delete
+               key code 51
+        end repeat
+
+
+        delay 0.1
+        keystroke "a" using command down
+        delay 0.5
+        keystroke "c" using command down
+
+        delay 0.5
+        set clipboardData to (the clipboard as text)
+
+        if ("/" is not (clipboardData as string)) then
+                error "/ is not clipboardData"
+        end if
+
+end tell
+
+tell application "Safari" to quit
+
+display notification "Test passed" with title "Safari test" sound name "Glass"