Fix the Web Bluetooth chooser when it is used on Chrome apps on non-Mac

ui/views/controls/styled_label.h

 // 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.
 
 #ifndef UI_VIEWS_CONTROLS_STYLED_LABEL_H_
 #define UI_VIEWS_CONTROLS_STYLED_LABEL_H_
 
 #include <list>
 #include <map>
 
@@ skipping 50 matching lines @@
     bool is_link;
   };
 
   // Note that any trailing whitespace in |text| will be trimmed.
   StyledLabel(const base::string16& text, StyledLabelListener* listener);
   ~StyledLabel() override;
 
   // Sets the text to be displayed, and clears any previous styling.
   void SetText(const base::string16& text);
 
+  void set_listener(StyledLabelListener* listener) { listener_ = listener; }

[sky, 2016/11/09 17:55:48]

I would prefer not to expose this. I think it's moderately error prone. Sorry
for sending you down this path. Can you go back to having ChooserContentView
create the link? I recommend moving construction to the constructor though. And
you can have ChooserContentView own the label (in a unique_ptr, or by value if
you prefer), but call set_owned_by_client.

[juncai, 2016/11/09 20:25:02]

Done.

+
   const base::string16& text() const { return text_; }
 
   // Sets the fonts used by all labels. Can be augemented by styling set by
   // AddStyleRange and SetDefaultStyle.
   void SetBaseFontList(const gfx::FontList& font_list);
 
   // Marks the given range within |text_| with style defined by |style_info|.
   // |range| must be contained in |text_|.
   void AddStyleRange(const gfx::Range& range, const RangeStyleInfo& style_info);
 
@@ skipping 96 matching lines @@
   // Controls whether the text is automatically re-colored to be readable on the
   // background.
   bool auto_color_readability_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(StyledLabel);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_STYLED_LABEL_H_