cros: Simple password view for lock. Adds test support.

ash/system/tray/size_range_layout.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 <limits>
 
 #include "ash/system/tray/size_range_layout.h"
 
 #include "base/logging.h"
 #include "ui/views/layout/fill_layout.h"
 
 namespace ash {
 
 // static
 
 const int SizeRangeLayout::kAbsoluteMinSize = 0;
 const int SizeRangeLayout::kAbsoluteMaxSize = std::numeric_limits<int>::max();
 
 // Non static
 
 SizeRangeLayout::SizeRangeLayout()
     : SizeRangeLayout(gfx::Size(kAbsoluteMinSize, kAbsoluteMinSize),
                       gfx::Size(kAbsoluteMaxSize, kAbsoluteMaxSize)) {}
 
+SizeRangeLayout::SizeRangeLayout(const gfx::Size& size)
+    : SizeRangeLayout(size, size) {}
+
 SizeRangeLayout::SizeRangeLayout(const gfx::Size& min_size,
                                  const gfx::Size& max_size)
     : layout_manager_(new views::FillLayout()),
       min_size_(gfx::Size(kAbsoluteMinSize, kAbsoluteMinSize)),
       max_size_(gfx::Size(kAbsoluteMaxSize, kAbsoluteMaxSize)) {
   SetMinSize(min_size);
   SetMaxSize(max_size);
 }
 
 SizeRangeLayout::~SizeRangeLayout() {}
@@ skipping 53 matching lines @@
 void SizeRangeLayout::ViewRemoved(views::View* host, views::View* view) {
   layout_manager_->ViewRemoved(host, view);
 }
 
 void SizeRangeLayout::ClampSizeToRange(gfx::Size* size) const {
   size->SetToMax(min_size_);
   size->SetToMin(max_size_);
 }
 
 }  // namespace ash