Remove BubbleDelegateView ctor color arg, add simple setter/getter.

ui/aura_shell/examples/bubble.cc

 // Copyright (c) 2011 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 "base/utf_string_conversions.h"
 #include "ui/views/bubble/bubble_border.h"
 #include "ui/views/bubble/bubble_delegate.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/layout/fill_layout.h"
 #include "ui/views/widget/widget.h"
 
 namespace aura_shell {
 namespace examples {
 
 struct BubbleConfig {
   string16 label;
-  SkColor color;
   views::View* anchor_view;
   views::BubbleBorder::ArrowLocation arrow;
 };
 
 class ExampleBubbleDelegateView : public views::BubbleDelegateView {
  public:
   ExampleBubbleDelegateView(const BubbleConfig& config)
-      : BubbleDelegateView(config.anchor_view, config.arrow, config.color),
+      : BubbleDelegateView(config.anchor_view, config.arrow),
         label_(config.label) {}
 
   virtual void Init() OVERRIDE {
     SetLayoutManager(new views::FillLayout());
     views::Label* label = new views::Label(label_);
     AddChildView(label);
   }
 
  private:
   string16 label_;
 };
 
 void CreatePointyBubble(views::View* anchor_view) {
   BubbleConfig config;
   config.label = ASCIIToUTF16("PointyBubble");
-  config.color = SK_ColorWHITE;
   config.anchor_view = anchor_view;
   config.arrow = views::BubbleBorder::TOP_LEFT;
   ExampleBubbleDelegateView* bubble = new ExampleBubbleDelegateView(config);
   views::BubbleDelegateView::CreateBubble(bubble);
   bubble->Show();
 }
 
 }  // namespace examples
 }  // namespace aura_shell