DevTools: shard inspector/elements tests for faster execution.

LayoutTests/inspector/elements/edit-dom-actions-shadow-expected.txt

Index: LayoutTests/inspector/elements/edit-dom-actions-shadow-expected.txt
diff --git a/LayoutTests/inspector/elements/edit-dom-actions-shadow-expected.txt b/LayoutTests/inspector/elements/edit-dom-actions-shadow-expected.txt
deleted file mode 100644
index 062ac885799d9e539b3a8b97f588b29bac3f56ef..0000000000000000000000000000000000000000
--- a/LayoutTests/inspector/elements/edit-dom-actions-shadow-expected.txt
+++ /dev/null
@@ -1,32 +0,0 @@
-Tests that user can mutate author shadow DOM by means of elements panel.
-
-
-Running: testSetUp
-
-Running: testSetAuthorShadowDOMElementAttribute
-==== before ====
-- <div id="testSetAuthorShadowDOMElementAttribute">
-    - #shadow-root
-          <div foo="attribute value" id="shadow-node-to-set-attribute"></div>
-  </div>
-==== after ====
-- <div id="testSetAuthorShadowDOMElementAttribute">
-    - #shadow-root
-          <div id="shadow-node-to-set-attribute" bar="edited attribute"></div>
-  </div>
-
-Running: testEditShadowDOMAsHTML
-==== before ====
-- <div id="testEditAuthorShadowDOMAsHTML">
-    - #shadow-root
-          <div id="authorShadowDOMElement"></div>
-  </div>
-<div id="authorShadowDOMElement"></div>
-==== after ====
-- <div id="testEditAuthorShadowDOMAsHTML">
-    - #shadow-root
-        - <span foo="shadow-span">
-              <span id="inner-shadow-span">Shadow span contents</span>
-          </span>
-  </div>
-