DevTools: add bindings tests to fixate shadowDOM behavior.

third_party/WebKit/LayoutTests/http/tests/inspector/bindings/shadowdom-navigator-expected.txt

Index: third_party/WebKit/LayoutTests/http/tests/inspector/bindings/shadowdom-navigator-expected.txt
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/bindings/shadowdom-navigator-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/bindings/shadowdom-navigator-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..41f91b45e5bc1b701eb851a511f08b14e4b8787f
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/bindings/shadowdom-navigator-expected.txt
@@ -0,0 +1,70 @@
+Verify that navigator shows proper UISourceCodes as shadow dom styles and scripts are added and removed.
+
+
+Running: dumpInitialNavigator
+top
+  127.0.0.1:8000
+    inspector
+      bindings
+        shadowdom-navigator.html
+        bindings-test.js
+      inspector-test.js
+
+Running: attachShadow1
+top
+  127.0.0.1:8000
+    inspector
+      bindings
+        resources
+          sourcemap-typescript.ts
+          sourcemap-sass.scss
+        shadowdom-navigator.html
+        bindings-test.js
+      inspector-test.js
+  (no domain)
+    sourcemap-script.js
+    sourcemap-style.css
+
+Running: attachShadow2
+top
+  127.0.0.1:8000
+    inspector
+      bindings
+        resources
+          sourcemap-typescript.ts
+          sourcemap-sass.scss
+        shadowdom-navigator.html
+        bindings-test.js
+      inspector-test.js
+  (no domain)
+    sourcemap-script.js
+    sourcemap-style.css
+
+Running: detachShadow1
+top
+  127.0.0.1:8000
+    inspector
+      bindings
+        resources
+          sourcemap-typescript.ts
+          sourcemap-sass.scss
+        shadowdom-navigator.html
+        bindings-test.js
+      inspector-test.js
+  (no domain)
+    sourcemap-script.js
+
+Running: detachShadow2
+top
+  127.0.0.1:8000
+    inspector
+      bindings
+        resources
+          sourcemap-typescript.ts
+          sourcemap-sass.scss
+        shadowdom-navigator.html
+        bindings-test.js
+      inspector-test.js
+  (no domain)
+    sourcemap-script.js
+