Push updates to inspector when windows are added, destroyed or reorganized

ash/common/devtools/ash_devtools_unittest.cc

Index: ash/common/devtools/ash_devtools_unittest.cc
diff --git a/ash/common/devtools/ash_devtools_unittest.cc b/ash/common/devtools/ash_devtools_unittest.cc
index 65d77bec087f488460e1238fd6429b9a3ef12c1b..4bdcb034d756fc6d0cd081d6054616e722f78b93 100644
--- a/ash/common/devtools/ash_devtools_unittest.cc
+++ b/ash/common/devtools/ash_devtools_unittest.cc
@@ -146,6 +146,8 @@ TEST_F(AshDevToolsTest, GetDocumentWithWindowWidgetView) {
   ASSERT_TRUE(widget_children->get(0)->getChildren(default_children));
   Compare(child_view,
           widget_children->get(0)->getChildren(default_children)->get(1));
+  // TODO(mhashmi): Remove this call and mock FrontendChannel
+  dom_agent()->disable();
 }
 
 }  // namespace ash