DevTools: hide page overlay layers in LayerTreeAgent

LayoutTests/inspector/layers/layer-tree-model.html

Index: LayoutTests/inspector/layers/layer-tree-model.html
diff --git a/LayoutTests/inspector/layer-tree-model.html b/LayoutTests/inspector/layers/layer-tree-model.html
similarity index 93%
rename from LayoutTests/inspector/layer-tree-model.html
rename to LayoutTests/inspector/layers/layer-tree-model.html
index 81fa43d802c9dec7ab1302506dcb12ec593aa0db..c40d505b845a15789b6bcaf1f99507e7ad5f929e 100644
--- a/LayoutTests/inspector/layer-tree-model.html
+++ b/LayoutTests/inspector/layers/layer-tree-model.html
@@ -6,8 +6,8 @@
     opacity: 0.8;
 }
 </style>
-<script src="../http/tests/inspector/inspector-test.js"></script>
-<script src="../http/tests/inspector/layers-test.js"></script>
+<script src="../../http/tests/inspector/inspector-test.js"></script>
+<script src="../../http/tests/inspector/layers-test.js"></script>
 <script>
 window.quietUntilDone = true;