Promotes a handful of members from WmShell to Shell

ash/common/devtools/ash_devtools_unittest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/common/devtools/ash_devtools_css_agent.h"
 #include "ash/common/devtools/ash_devtools_dom_agent.h"
 #include "ash/common/test/ash_test.h"
 #include "ash/common/wm_shell.h"
 #include "ash/common/wm_window.h"
 #include "ash/root_window_controller.h"
@@ skipping 181 matching lines @@
             widget, kShellWindowId_DefaultContainer, &params);
     widget->Init(params);
     return widget->native_widget_private();
   }
 
   void SetUp() override {
     AshTest::SetUp();
     fake_frontend_channel_ = base::MakeUnique<FakeFrontendChannel>();
     uber_dispatcher_ =
         base::MakeUnique<UberDispatcher>(fake_frontend_channel_.get());
-    dom_agent_ =
-        base::MakeUnique<devtools::AshDevToolsDOMAgent>(WmShell::Get());
+    dom_agent_ = base::MakeUnique<devtools::AshDevToolsDOMAgent>();
     dom_agent_->Init(uber_dispatcher_.get());
     css_agent_ =
         base::MakeUnique<devtools::AshDevToolsCSSAgent>(dom_agent_.get());
     css_agent_->Init(uber_dispatcher_.get());
     css_agent_->enable();
   }
 
   void TearDown() override {
     css_agent_.reset();
     dom_agent_.reset();
@@ skipping 542 matching lines @@
   EXPECT_EQ(gfx::Rect(25, 35, 45, 20), root_view->bounds());  // Not changed
 
   SetStyleTexts(root_view_node, "\nheight: 73;\n  ", true);
   EXPECT_EQ(gfx::Rect(25, 35, 45, 73), root_view->bounds());
 
   SetStyleTexts(root_view_node, "\nx: 10; y: 23; width: 52;\n  ", true);
   EXPECT_EQ(gfx::Rect(10, 23, 52, 73), root_view->bounds());
 }
 
 }  // namespace ash