Remove the most obvious dead code from message center.

ui/message_center/views/message_bubble_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 "ui/message_center/views/message_bubble_base.h"
 
 #include "base/bind.h"
 #include "ui/message_center/message_center_style.h"
 #include "ui/message_center/message_center_util.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/widget/widget_observer.h"
 
 namespace {
 // Delay laying out the MessageBubbleBase until all notifications have been
 // added and icons have had a chance to load.
 const int kUpdateDelayMs = 50;
 const int kMessageBubbleBaseDefaultMaxHeight = 400;
 }
 
 namespace message_center {
 
 const SkColor MessageBubbleBase::kBackgroundColor =
     SkColorSetRGB(0xfe, 0xfe, 0xfe);
 
 MessageBubbleBase::MessageBubbleBase(MessageCenter* message_center,

[Jun Mukai, 2013/07/01 20:48:58]

MessageBubbleBase is also unnecessary, we can merge both into single
MessageCenterBubble class.
not necessary to do in this CL though.

[dewittj, 2013/07/01 23:58:30]

That's slightly more invasive.  I'll leave it for next time.

[Jun Mukai, 2013/07/02 00:14:37]

sgtm

                                      MessageCenterTray* tray)
     : message_center_(message_center),
       tray_(tray),
       bubble_view_(NULL),
       weak_ptr_factory_(this),
       max_height_(kMessageBubbleBaseDefaultMaxHeight) {
 }
 
 MessageBubbleBase::~MessageBubbleBase() {
   if (bubble_view_)
@@ skipping 13 matching lines @@
                  weak_ptr_factory_.GetWeakPtr()),
       base::TimeDelta::FromMilliseconds(kUpdateDelayMs));
 }
 
 bool MessageBubbleBase::IsVisible() const {
   return bubble_view() && bubble_view()->GetWidget()->IsVisible();
 }
 
 void MessageBubbleBase::SetMaxHeight(int height) {
   // Maximum height makes sense only for the new design.
-  if (!message_center::IsRichNotificationEnabled())
-    return;
-
   if (height == 0)
     height = kMessageBubbleBaseDefaultMaxHeight;
   if (height == max_height_)
     return;
 
   max_height_ = height;
   if (bubble_view_)
     bubble_view_->SetMaxHeight(max_height_);
 }
 
 views::TrayBubbleView::InitParams MessageBubbleBase::GetDefaultInitParams(
     views::TrayBubbleView::AnchorAlignment anchor_alignment) {
   views::TrayBubbleView::InitParams init_params(
       views::TrayBubbleView::ANCHOR_TYPE_TRAY,
       anchor_alignment,
       kNotificationWidth,
       kNotificationWidth);
   init_params.arrow_color = kBackgroundDarkColor;
   return init_params;
 }
 
 }  // namespace message_center