Mac: dark backgrounds in dark mode for secondary UI/menus.

Bug: 850098
Change-Id: If6de5922311ba501c5a746d9228993b42eff0b60
Reviewed-on: https://chromium-review.googlesource.com/c/1291569
Commit-Queue: Leonard Grey <lgrey@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Reviewed-by: Michael Wasserman <msw@chromium.org>
Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#601709}

ui/native_theme/native_theme_mac.mm

@@ -25,6 +25,9 @@ @interface NSWorkspace (Redeclarations)
 namespace {
 
 const SkColor kMenuPopupBackgroundColor = SK_ColorWHITE;
+// TODO(crbug.com/893598): Finalize dark mode color.
+const SkColor kMenuPopupBackgroundColorDarkMode =
+    SkColorSetRGB(0x2B, 0x2B, 0x2B);
 
 // Helper to make indexing an array by an enum class easier.
 template <class KEY, class VALUE>
@@ -123,7 +126,10 @@ SkColor ColorToGrayscale(SkColor color) {
     case kColorId_FocusedMenuItemBackgroundColor:
       return UsesHighContrastColors() ? SK_ColorDKGRAY : gfx::kGoogleGrey200;
     case kColorId_MenuBackgroundColor:
-      return kMenuPopupBackgroundColor;
+    case kColorId_BubbleBackground:
+    case kColorId_DialogBackground:
+      return SystemDarkModeEnabled() ? kMenuPopupBackgroundColorDarkMode
+                                     : kMenuPopupBackgroundColor;
     case kColorId_MenuSeparatorColor:
       return UsesHighContrastColors() ? SK_ColorBLACK
                                       : SkColorSetA(SK_ColorBLACK, 0x26);
@@ -160,7 +166,7 @@ SkColor ColorToGrayscale(SkColor color) {
     const MenuBackgroundExtraParams& menu_background) const {
   cc::PaintFlags flags;
   flags.setAntiAlias(true);
-  flags.setColor(kMenuPopupBackgroundColor);
+  flags.setColor(GetSystemColor(kColorId_MenuBackgroundColor));
   const SkScalar radius = SkIntToScalar(menu_background.corner_radius);
   SkRect rect = gfx::RectToSkRect(gfx::Rect(size));
   canvas->drawRoundRect(rect, radius, radius, flags);

ui/views/bubble/footnote_container_view.cc

@@ -8,6 +8,7 @@
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/color_palette.h"
 #include "ui/gfx/geometry/rect_f.h"
+#include "ui/native_theme/native_theme.h"
 #include "ui/views/background.h"
 #include "ui/views/border.h"
 #include "ui/views/layout/box_layout.h"
@@ -61,7 +62,11 @@ FootnoteContainerView::FootnoteContainerView(const gfx::Insets& margins,
 FootnoteContainerView::~FootnoteContainerView() = default;
 
 void FootnoteContainerView::SetCornerRadius(float corner_radius) {
-  SetBackground(std::make_unique<HalfRoundedRectBackground>(gfx::kGoogleGrey050,
+  // TODO(crbug.com/893598): Finalize dark mode color.
+  SkColor background_color = GetNativeTheme()->SystemDarkModeEnabled()
+                                 ? gfx::kGoogleGrey800
+                                 : gfx::kGoogleGrey050;
+  SetBackground(std::make_unique<HalfRoundedRectBackground>(background_color,
                                                             corner_radius));
 }