Make unicode-bidi:isolate the default for elements with dir attributes

third_party/WebKit/LayoutTests/editing/style/make-text-writing-direction-inline-mac-expected.txt

Index: third_party/WebKit/LayoutTests/editing/style/make-text-writing-direction-inline-mac-expected.txt
diff --git a/third_party/WebKit/LayoutTests/editing/style/make-text-writing-direction-inline-mac-expected.txt b/third_party/WebKit/LayoutTests/editing/style/make-text-writing-direction-inline-mac-expected.txt
index 5c20a9cbe747887a0c3def74a6f2b353afd06e46..89b53f0fcd26cb54b5cabd7096fa7e346e43d73f 100644
--- a/third_party/WebKit/LayoutTests/editing/style/make-text-writing-direction-inline-mac-expected.txt
+++ b/third_party/WebKit/LayoutTests/editing/style/make-text-writing-direction-inline-mac-expected.txt
@@ -10,7 +10,7 @@ PASS Natural on second and third words of "<b>hello world</b> webkit"
 PASS LeftToRight on second and third words of "<b>hello world</b> webkit"
 PASS RightToLeft on second and third words of "<b>hello world</b> webkit"
 FAIL (due to the bug 44359) Natural on third word of "<span dir="rtl">hello <span dir="ltr">world webkit rocks</span></span>" yielded <span dir="rtl">hello <span dir="ltr">world</span></span><span><span> webkit</span></span><span dir="rtl"><span dir="ltr"> rocks</span></span> but expected <span dir="rtl">hello <span dir="ltr">world</span></span> webkit<span dir="rtl"><span dir="ltr"> rocks</span></span>
-FAIL (due to the bug 44359) LeftToRight on third word of "<span dir="rtl">hello <span dir="ltr">world webkit rocks</span></span>" yielded <span dir="rtl">hello <span dir="ltr">world</span></span><span><span style="unicode-bidi: embed;"> webkit</span></span><span dir="rtl"><span dir="ltr"> rocks</span></span> but expected <span dir="rtl">hello <span dir="ltr">world</span></span><span style="unicode-bidi: embed;"> webkit</span><span dir="rtl"><span dir="ltr"> rocks</span></span>
+FAIL (due to the bug 44359) LeftToRight on third word of "<span dir="rtl">hello <span dir="ltr">world webkit rocks</span></span>" yielded <span dir="rtl">hello <span dir="ltr">world</span></span><span><span style="unicode-bidi: isolate;"> webkit</span></span><span dir="rtl"><span dir="ltr"> rocks</span></span> but expected <span dir="rtl">hello <span dir="ltr">world</span></span><span style="unicode-bidi: isolate;"> webkit</span><span dir="rtl"><span dir="ltr"> rocks</span></span>
 FAIL (due to the bug 44359) RightToLeft on third word of "<span dir="rtl">hello <span dir="ltr">world webkit rocks</span></span>" yielded <span dir="rtl">hello <span dir="ltr">world</span><span> webkit</span><span dir="ltr"> rocks</span></span> but expected <span dir="rtl">hello <span dir="ltr">world</span> webkit<span dir="ltr"> rocks</span></span>
 PASS Natural on first word of "هنا يكتب النص العربي"
 PASS LeftToRight on first word of "هنا يكتب النص العربي"