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

ui/message_center/views/message_center_view_unittest.cc

 // Copyright 2013 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 <map>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 22 matching lines @@
   class Test {
    public:
     virtual void RegisterCall(CallType type) = 0;
   };
 
   explicit MockNotificationView(MessageCenterController* controller,
                                 const Notification& notification,
                                 Test* test);
   virtual ~MockNotificationView();
 
-  virtual gfx::Size GetPreferredSize() OVERRIDE;
-  virtual int GetHeightForWidth(int w) OVERRIDE;
+  virtual gfx::Size GetPreferredSize() const OVERRIDE;
+  virtual int GetHeightForWidth(int w) const OVERRIDE;
   virtual void Layout() OVERRIDE;
 
  private:
   Test* test_;
 
   DISALLOW_COPY_AND_ASSIGN(MockNotificationView);
 };
 
 MockNotificationView::MockNotificationView(MessageCenterController* controller,
                                            const Notification& notification,
                                            Test* test)
     : NotificationView(controller, notification),
       test_(test) {
 }
 
 MockNotificationView::~MockNotificationView() {
 }
 
-gfx::Size MockNotificationView::GetPreferredSize() {
+gfx::Size MockNotificationView::GetPreferredSize() const {
   test_->RegisterCall(GET_PREFERRED_SIZE);
   DCHECK(child_count() > 0);
   return NotificationView::GetPreferredSize();
 }
 
-int MockNotificationView::GetHeightForWidth(int width) {
+int MockNotificationView::GetHeightForWidth(int width) const {
   test_->RegisterCall(GET_HEIGHT_FOR_WIDTH);
   DCHECK(child_count() > 0);
   return NotificationView::GetHeightForWidth(width);
 }
 
 void MockNotificationView::Layout() {
   test_->RegisterCall(LAYOUT);
   DCHECK(child_count() > 0);
   NotificationView::Layout();
 }
@@ skipping 152 matching lines @@
   // GetHeightForWidth() calls per descendant NotificationView. 20 is a very
   // large number corresponding to the current reality. That number will be
   // ratcheted down over time as the code improves.
   EXPECT_LE(GetCallCount(LAYOUT), GetNotificationCount() * 2);
   EXPECT_LE(GetCallCount(GET_PREFERRED_SIZE) +
             GetCallCount(GET_HEIGHT_FOR_WIDTH),
             GetNotificationCount() * 20);
 }
 
 }  // namespace message_center