Broke out layout metric information from ViewsDelegate to LayoutProvider

ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11_unittest.cc

 // Copyright 2014 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 <map>
 #include <memory>
 #include <vector>
 
 // Include views_test_base.h first because the definition of None in X.h
 // conflicts with the definition of None in gtest-type-util.h
@@ skipping 390 matching lines @@
         widget_->GetNativeWindow()->GetRootWindow(),
         widget_->GetNativeWindow(),
         gfx::Point(),
         ui::DragDropTypes::DRAG_COPY,
         ui::DragDropTypes::DRAG_EVENT_SOURCE_MOUSE);
   }
 
   // ViewsTestBase:
   void SetUp() override {
     ViewsTestBase::SetUp();
-    views_delegate()->set_use_desktop_native_widgets(true);
+    test_views_delegate()->set_use_desktop_native_widgets(true);
 
     // Create widget to initiate the drags.
     widget_.reset(new Widget);
     Widget::InitParams params(Widget::InitParams::TYPE_WINDOW);
     params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
     params.native_widget = new DesktopNativeWidgetAura(widget_.get());
     params.bounds = gfx::Rect(100, 100);
     widget_->Init(params);
     widget_->Show();
 
@@ skipping 577 matching lines @@
 // the aura::client::DragDropDelegate is properly notified.
 TEST_F(DesktopDragDropClientAuraX11ChromeSourceTargetTest, CtrlPressed) {
   base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE,
       base::Bind(&ChromeSourceTargetStep2, client(), ui::EF_CONTROL_DOWN));
   int result = StartDragAndDrop();
   EXPECT_EQ(ui::DragDropTypes::DRAG_COPY, result);
 }
 
 }  // namespace views