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

chrome/browser/ui/views/apps/chrome_native_app_window_views.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 "chrome/browser/ui/views/apps/chrome_native_app_window_views.h"
 
 #include "apps/ui/views/app_window_frame_view.h"
 #include "base/command_line.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/app_mode/app_mode_utils.h"
@@ skipping 556 matching lines @@
 bool ChromeNativeAppWindowViews::WidgetHasHitTestMask() const {
   return shape_ != NULL;
 }
 
 void ChromeNativeAppWindowViews::GetWidgetHitTestMask(gfx::Path* mask) const {
   shape_->getBoundaryPath(mask);
 }
 
 // views::View implementation.
 
-gfx::Size ChromeNativeAppWindowViews::GetPreferredSize() {
+gfx::Size ChromeNativeAppWindowViews::GetPreferredSize() const {
   if (!preferred_size_.IsEmpty())
     return preferred_size_;
   return NativeAppWindowViews::GetPreferredSize();
 }
 
 bool ChromeNativeAppWindowViews::AcceleratorPressed(
     const ui::Accelerator& accelerator) {
   const std::map<ui::Accelerator, int>& accelerator_table =
       GetAcceleratorTable();
   std::map<ui::Accelerator, int>::const_iterator iter =
@@ skipping 130 matching lines @@
     InitializePanelWindow(create_params);
   } else {
     InitializeDefaultWindow(create_params);
   }
   extension_keybinding_registry_.reset(new ExtensionKeybindingRegistryViews(
       Profile::FromBrowserContext(app_window->browser_context()),
       widget()->GetFocusManager(),
       extensions::ExtensionKeybindingRegistry::PLATFORM_APPS_ONLY,
       NULL));
 }