Remove non-MD code from LabelTrayView

ash/common/system/tray/label_tray_view.h

 // 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.
 
 #ifndef ASH_COMMON_SYSTEM_TRAY_LABEL_TRAY_VIEW_H_
 #define ASH_COMMON_SYSTEM_TRAY_LABEL_TRAY_VIEW_H_
 
 #include "base/macros.h"
 #include "base/strings/string16.h"
 #include "ui/views/view.h"
 
+namespace gfx {
+struct VectorIcon;
+}  // namespace gfx
+
 namespace ash {
-
 class ViewClickListener;
 
-// View for simple information in tray. Automatically hides when message is
-// empty. Supports multiline messages.
-
+// A view to display an icon and message text in the system menu which
+// automatically hides when the message text is empty. Multi-line

[Evan Stade, 2017/02/22 21:43:46]

seems like this comment is wrapped early

[tdanderson, 2017/03/30 14:51:39]

Done.

+// message text is supported.
 class LabelTrayView : public views::View {
  public:
-  LabelTrayView(ViewClickListener* click_listener, int icon_resource_id);
+  LabelTrayView(ViewClickListener* click_listener, const gfx::VectorIcon& icon);
   ~LabelTrayView() override;
   void SetMessage(const base::string16& message);
 
  private:
   views::View* CreateChildView(const base::string16& message) const;
 
   ViewClickListener* click_listener_;
-  int icon_resource_id_;
+  const gfx::VectorIcon& icon_;
   base::string16 message_;
 
   DISALLOW_COPY_AND_ASSIGN(LabelTrayView);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_TRAY_LABEL_TRAY_VIEW_H_