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

chrome/test/base/view_event_test_base.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/test/base/view_event_test_base.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 36 matching lines @@
 // View subclass that allows you to specify the preferred size.
 class TestView : public views::View {
  public:
   TestView() {}
 
   void SetPreferredSize(const gfx::Size& size) {
     preferred_size_ = size;
     PreferredSizeChanged();
   }
 
-  virtual gfx::Size GetPreferredSize() OVERRIDE {
+  virtual gfx::Size GetPreferredSize() const OVERRIDE {
     if (!preferred_size_.IsEmpty())
       return preferred_size_;
     return View::GetPreferredSize();
   }
 
   virtual void Layout() OVERRIDE {
     View* child_view = child_at(0);
     child_view->SetBounds(0, 0, width(), height());
   }
 
@@ skipping 153 matching lines @@
   content::RunAllPendingInMessageLoop();
 
   // Schedule a task that starts the test. Need to do this as we're going to
   // run the message loop.
   base::MessageLoop::current()->PostTask(
       FROM_HERE, base::Bind(&ViewEventTestBase::DoTestOnMessageLoop, this));
 
   content::RunMessageLoop();
 }
 
-gfx::Size ViewEventTestBase::GetPreferredSize() {
+gfx::Size ViewEventTestBase::GetPreferredSize() const {
   return gfx::Size();
 }
 
 void ViewEventTestBase::ScheduleMouseMoveInBackground(int x, int y) {
   if (!dnd_thread_.get()) {
     dnd_thread_.reset(new base::Thread("mouse-move-thread"));
     dnd_thread_->Start();
   }
   dnd_thread_->message_loop()->PostDelayedTask(
       FROM_HERE,
       base::Bind(base::IgnoreResult(&ui_controls::SendMouseMove), x, y),
       base::TimeDelta::FromMilliseconds(kMouseMoveDelayMS));
 }
 
 void ViewEventTestBase::StopBackgroundThread() {
   dnd_thread_.reset(NULL);
 }
 
 void ViewEventTestBase::RunTestMethod(const base::Closure& task) {
   StopBackgroundThread();
 
   task.Run();
   if (HasFatalFailure())
     Done();
 }