Fixed view example. It was failing because some of view classes requires WidgetGTK in

views/controls/scroll_view.cc

 // Copyright (c) 2006-2008 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 "views/controls/scroll_view.h"
 
 #include "app/resource_bundle.h"
 #include "base/logging.h"
 #include "views/controls/scrollbar/native_scroll_bar.h"
 #include "views/widget/root_view.h"
@@ skipping 172 matching lines @@
   }
   bool resize_corner_required = resize_corner_ && horiz_sb_required &&
                                 vert_sb_required;
   // Take action.
   SetControlVisibility(horiz_sb_, horiz_sb_required);
   SetControlVisibility(vert_sb_, vert_sb_required);
   SetControlVisibility(resize_corner_, resize_corner_required);
 
   // Non-default.
   if (horiz_sb_required) {
-    viewport_bounds.set_height(viewport_bounds.height() - horiz_sb_height);
+    viewport_bounds.set_height(
+        std::max(0, viewport_bounds.height() - horiz_sb_height));
     should_layout_contents = true;
   }
   // Default.
   if (!vert_sb_required) {
     viewport_bounds.set_width(viewport_bounds.width() + vert_sb_width);
     should_layout_contents = true;
   }
 
   if (horiz_sb_required) {
     horiz_sb_->SetBounds(0,
@@ skipping 303 matching lines @@
 
 VariableRowHeightScrollHelper::RowInfo
     FixedRowHeightScrollHelper::GetRowInfo(int y) {
   if (y < top_margin_)
     return RowInfo(0, top_margin_);
   return RowInfo((y - top_margin_) / row_height_ * row_height_ + top_margin_,
                  row_height_);
 }
 
 }  // namespace views