Desktop aura: Continue threading context through views.

ui/views/controls/scrollbar/scrollbar_unittest.cc

 // Copyright (c) 2012 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 "ui/views/controls/scrollbar/native_scroll_bar.h"
 #include "ui/views/controls/scrollbar/native_scroll_bar_views.h"
 #include "ui/views/controls/scrollbar/scroll_bar.h"
 #include "ui/views/test/views_test_base.h"
 #include "ui/views/widget/widget.h"
 
@@ skipping 46 matching lines @@
   virtual void SetUp() {
     ViewsTestBase::SetUp();
     controller_.reset(new TestScrollBarController());
 
     ASSERT_FALSE(scrollbar_);
     native_scrollbar_ = new NativeScrollBar(true);
     native_scrollbar_->SetBounds(0, 0, 100, 100);
     native_scrollbar_->set_controller(controller_.get());
 
     widget_ = new Widget;
-    Widget::InitParams params(Widget::InitParams::TYPE_POPUP);
+    Widget::InitParams params = CreateParams(Widget::InitParams::TYPE_POPUP);
     params.bounds = gfx::Rect(0, 0, 100, 100);
     widget_->Init(params);
     View* container = new View();
     widget_->SetContentsView(container);
     container->AddChildView(native_scrollbar_);
 
     scrollbar_ =
         static_cast<NativeScrollBarViews*>(native_scrollbar_->native_wrapper_);
     scrollbar_->SetBounds(0, 0, 100, 100);
     scrollbar_->Update(100, 200, 0);
@@ skipping 60 matching lines @@
   EXPECT_EQ(controller_->last_position, 0);
 
   scrollbar_->ScrollByAmount(BaseScrollBar::SCROLL_NEXT_PAGE);
   EXPECT_EQ(controller_->last_position, 20);
 
   scrollbar_->ScrollByAmount(BaseScrollBar::SCROLL_PREV_PAGE);
   EXPECT_EQ(controller_->last_position, 0);
 }
 
 }  // namespace views