Update avatar button to MD (part 1)

chrome/browser/ui/views/profiles/themed_avatar_button.h

+// Copyright 2017 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 CHROME_BROWSER_UI_VIEWS_PROFILES_THEMED_AVATAR_BUTTON_H_
+#define CHROME_BROWSER_UI_VIEWS_PROFILES_THEMED_AVATAR_BUTTON_H_
+
+#include "chrome/browser/ui/views/profiles/avatar_button.h"
+#include "chrome/browser/ui/views/profiles/avatar_button_style.h"
+#include "ui/views/controls/button/menu_button_listener.h"
+
+class ThemedAvatarButton : public AvatarButton {

[Evan Stade, 2017/05/02 15:49:20]

so now that these two/three avatar button classes are more simplified, I wonder
if we can re-combine them into a single class? Especially because the themed
version is going to want many if not all of the same ink drop settings when I
MD-ify it.

+ public:
+  ThemedAvatarButton(views::MenuButtonListener* listener,
+                     AvatarButtonStyle button_style,
+                     Profile* profile);
+  ~ThemedAvatarButton() override;
+
+ protected:
+  gfx::Size GetPreferredSize() const override;
+
+ private:
+  std::unique_ptr<views::Border> CreateBorder(
+      const int normal_image_set[],
+      const int hot_image_set[],
+      const int pushed_image_set[]) const;
+  // Sets generic_avatar_ to the image with the specified IDR.
+  void SetButtonAvatar(int avatar_idr);
+
+  DISALLOW_COPY_AND_ASSIGN(ThemedAvatarButton);
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_PROFILES_THEMED_AVATAR_BUTTON_H_