views: Make view::Views::GetPreferredSize() const.

chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.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 "chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.h"
 
 #include "ash/ash_switches.h"
 #include "ash/frame/caption_buttons/frame_caption_button_container_view.h"
 #include "ash/frame/default_header_painter.h"
 #include "ash/frame/frame_border_hit_test_controller.h"
@@ skipping 308 matching lines @@
 
   // Claim |rect| if it is above the top of the topmost view in the client area.
   return rect.y() < GetTopInset();
 }
 
 void BrowserNonClientFrameViewAsh::GetAccessibleState(
     ui::AXViewState* state) {
   state->role = ui::AX_ROLE_TITLE_BAR;
 }
 
-gfx::Size BrowserNonClientFrameViewAsh::GetMinimumSize() {
+gfx::Size BrowserNonClientFrameViewAsh::GetMinimumSize() const {
   gfx::Size min_client_view_size(frame()->client_view()->GetMinimumSize());
   int min_width = std::max(header_painter_->GetMinimumHeaderWidth(),
                            min_client_view_size.width());
   if (browser_view()->IsTabStripVisible()) {
     // Ensure that the minimum width is enough to hold a minimum width tab strip
     // at its usual insets.
     int min_tabstrip_width =
         browser_view()->tabstrip()->GetMinimumSize().width();
     min_width = std::max(min_width,
         min_tabstrip_width + GetTabStripLeftInset() + GetTabStripRightInset());
@@ skipping 193 matching lines @@
           ThemeProperties::COLOR_TOOLBAR_SEPARATOR));
 }
 
 void BrowserNonClientFrameViewAsh::PaintContentEdge(gfx::Canvas* canvas) {
   DCHECK(!UsePackagedAppHeaderStyle());
   canvas->FillRect(gfx::Rect(0, caption_button_container_->bounds().bottom(),
                              width(), kClientEdgeThickness),
                    ThemeProperties::GetDefaultColor(
                        ThemeProperties::COLOR_TOOLBAR_SEPARATOR));
 }