[ash-md] Updates window title if it is changed after entering overview

ui/views/controls/button/label_button_unittest.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/views/controls/button/label_button.h"
 
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "third_party/skia/include/core/SkBitmap.h"
@@ skipping 293 matching lines @@
   button_->SetMinSize(gfx::Size());
   button_->SetFontList(original_font_list);
   EXPECT_EQ(original_width, button_->GetPreferredSize().width());
   EXPECT_EQ(original_height, button_->GetPreferredSize().height());
 }
 
 TEST_F(LabelButtonTest, ChangeTextSize) {
   const base::string16 text(ASCIIToUTF16("abc"));
   const base::string16 longer_text(ASCIIToUTF16("abcdefghijklm"));
   button_->SetText(text);
+  button_->SizeToPreferredSize();
+  gfx::Rect bounds(button_->bounds());
+  const int original_width = button_->GetPreferredSize().width();
+  EXPECT_EQ(original_width, bounds.width());
 
-  const int original_width = button_->GetPreferredSize().width();
+  // Reserve more space in the button.
+  bounds.set_width(bounds.width() * 10);
+  button_->SetBoundsRect(bounds);
 
-  // The button size increases when the text size is increased.
+  // Label view in the button is sized to short text.
+  const int original_label_width = button_->label()->bounds().width();
+
+  // The button preferred size and the label size increase when the text size
+  // is increased.
   button_->SetText(longer_text);
-  EXPECT_GT(button_->GetPreferredSize().width(), original_width);
+  EXPECT_GT(button_->label()->bounds().width(), original_label_width * 2);
+  EXPECT_GT(button_->GetPreferredSize().width(), original_width * 2);
 
-  // The button returns to its original size when the original text is restored.
+  // The button and the label view return to its original size when the original
+  // text is restored.
   button_->SetMinSize(gfx::Size());
   button_->SetText(text);
+  EXPECT_EQ(original_label_width, button_->label()->bounds().width());
   EXPECT_EQ(original_width, button_->GetPreferredSize().width());
 }
 
 TEST_F(LabelButtonTest, ChangeLabelImageSpacing) {
   button_->SetText(ASCIIToUTF16("abc"));
   button_->SetImage(Button::STATE_NORMAL, CreateTestImage(50, 50));
 
   const int kOriginalSpacing = 5;
   button_->SetImageLabelSpacing(kOriginalSpacing);
   const int original_width = button_->GetPreferredSize().width();
@@ skipping 154 matching lines @@
 
 // Verifies the target event handler View is the |LabelButton| and not any of
 // the child Views.
 TEST_F(InkDropLabelButtonTest, TargetEventHandler) {
   View* target_view = widget_->GetRootView()->GetEventHandlerForPoint(
       button_->bounds().CenterPoint());
   EXPECT_EQ(button_, target_view);
 }
 
 }  // namespace views