Update avatar button to MD (part 1)

chrome/browser/ui/views/profiles/win10_native_avatar_button.cc

+// 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.
+
+#include "chrome/browser/ui/views/profiles/win10_native_avatar_button.h"
+
+#include "chrome/app/vector_icons/vector_icons.h"
+#include "chrome/browser/ui/views/tabs/tab_strip.h"
+#include "ui/gfx/paint_vector_icon.h"
+#include "ui/views/animation/flood_fill_ink_drop_ripple.h"
+#include "ui/views/animation/ink_drop_impl.h"
+#include "ui/views/border.h"
+#include "ui/views/painter.h"
+
+const int kButtonMinWidth = 48;

[Evan Stade, 2017/05/03 16:39:36]

nit: unnamed namespace for these constants

[emx, 2017/05/03 17:10:59]

Done.

+const int kButtonMaxWidth = 96;
+// Height of the "cozy" MD button that slides over the tabstrip
+// ("tall" MD button height is computed)
+const int kButtonCozyHeight = 20;
+const int kButtonIconHeight = 16;
+const SkColor kButtonIconColor = SkColorSetA(SK_ColorBLACK, 0.54 * 0xFF);
+// Opacity of the ink drop on hover
+const float kInkDropHighlightOpacity = 0.08f;
+// Opacity of the ink drop on click, which is added to kInkDropHighlightOpacity
+const float kInkDropRippleOpacity = 0.04f;
+
+Win10NativeAvatarButton::Win10NativeAvatarButton(
+    views::MenuButtonListener* listener,
+    Profile* profile)
+    : AvatarButton(listener, profile) {
+  set_generic_avatar(gfx::CreateVectorIcon(
+      kAccountCircleIcon, kButtonIconHeight, kButtonIconColor));
+  SetBorder(CreateBorder());
+
+  Update();
+  SchedulePaint();
+
+  SetInkDropMode(InkDropMode::ON);
+  set_has_ink_drop_action_on_click(true);
+  SetFocusPainter(nullptr);
+  set_ink_drop_base_color(SK_ColorBLACK);
+  set_ink_drop_visible_opacity(kInkDropRippleOpacity);
+}
+
+Win10NativeAvatarButton::~Win10NativeAvatarButton() {}
+
+gfx::Size Win10NativeAvatarButton::GetMinimumSize() const {
+  // Returns the "cozy" size of the button. Called by
+  // GlassBrowserFrameView::LayoutProfileSwitcher() when it calculates that the
+  // button needs to slide over the tabstrip.
+  return gfx::Size(kButtonMinWidth, kButtonCozyHeight);
+}
+
+gfx::Size Win10NativeAvatarButton::GetPreferredSize() const {
+  // Returns the "tall" (normal) size of the button. Its height should match
+  // the caption button height.
+  gfx::Size size = views::MenuButton::GetPreferredSize();
+  size.set_width(
+      std::min(std::max(size.width(), kButtonMinWidth), kButtonMaxWidth));
+  // TODO(emx): get the proper height here - see http://crrev/2833363002
+  size.set_height(30);
+  return size;
+}
+
+std::unique_ptr<views::Border> Win10NativeAvatarButton::CreateBorder() const {

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

file local static?

[emx, 2017/05/03 17:10:59]

Done.

+  // These insets look OK at 100%, 125%, 150%, 175% and 200% scaling.
+  const int kLeftRightInset = 8;
+  const int kTopInset = 1;
+  const int kBottomInset = 3;
+  return views::CreateEmptyBorder(kTopInset, kLeftRightInset, kBottomInset,
+                                  kLeftRightInset);
+}
+
+bool Win10NativeAvatarButton::UseFloodFillInkDrop() const {
+  return true;
+}
+
+std::unique_ptr<views::InkDropHighlight>
+Win10NativeAvatarButton::CreateInkDropHighlight() const {
+  auto center = gfx::RectF(GetLocalBounds()).CenterPoint();
+  auto ink_drop_highlight = base::MakeUnique<views::InkDropHighlight>(
+      size(), 0, center, GetInkDropBaseColor());
+  ink_drop_highlight->set_visible_opacity(kInkDropHighlightOpacity);
+  return ink_drop_highlight;
+}