[Cr96-followup] Fixes Task Manager colors.

Fixes brave/brave-browser#19241

- Added table selection and grouping colors overrides
- Organized colors by UI elements and alphabetized within

Chromium change:

https://source.chromium.org/chromium/chromium/src/+/9ff93f5baeaa7e547bc56ca3e00c017f74aa7358

commit 9ff93f5baeaa7e547bc56ca3e00c017f74aa7358
Author: Peter Kasting <pkasting@chromium.org>
Date:   Wed Sep 15 20:32:00 2021 +0000

    Port the majority of ui/views/controls/ to color pipeline.

    Bug: 1249558

chromium_src/ui/color/ui_color_mixer.cc

@@ -14,29 +14,63 @@ void AddBraveUiColorMixer(ColorProvider* provider,
                           bool high_contrast) {
   ColorMixer& mixer = provider->AddMixer();
 
-  // For deprecated kColorId_ButtonEnabledColor
-  mixer[kColorButtonForeground] = {dark_window ? SK_ColorWHITE
-                                               : gfx::kBraveGrey800};
-  mixer[kColorButtonForegroundChecked] = {kColorButtonForeground};
-  // For deprecated kColorId_ProminentButtonFocusedColor
-  mixer[kColorButtonBackgroundProminentFocused] = {gfx::kBraveColorBrand};
-  // For deprecated kColorId_ProminentButtonColor
-  mixer[kColorButtonBackgroundProminent] = {gfx::kBraveColorBrand};
+  // --------------------------------------------------------------------------
+  // Border colors
+  // --------------------------------------------------------------------------
   // For deprecated kColorId_FocusedBorderColor
   mixer[kColorFocusableBorderFocused] = {gfx::kBraveColorBrand};
+
+  // --------------------------------------------------------------------------
+  // Button colors
+  // --------------------------------------------------------------------------
+  // For deprecated kColorId_ProminentButtonColor
+  mixer[kColorButtonBackgroundProminent] = {gfx::kBraveColorBrand};
   // For deprecated kColorId_ProminentButtonDisabledColor
   mixer[kColorButtonBackgroundProminentDisabled] = {gfx::kGoogleGrey800};
-  // For deprecated kColorId_TextOnProminentButtonColor
-  mixer[kColorButtonForegroundProminent] = {SK_ColorWHITE};
+  // For deprecated kColorId_ProminentButtonFocusedColor
+  mixer[kColorButtonBackgroundProminentFocused] = {gfx::kBraveColorBrand};
   // For deprecated kColorId_ButtonBorderColor
   // TODO(simonhong): Add this color to palette.
   mixer[kColorButtonBorder] = {SkColorSetRGB(0xc3, 0xc4, 0xcf)};
+  // For deprecated kColorId_ButtonEnabledColor
+  mixer[kColorButtonForeground] = {dark_window ? SK_ColorWHITE
+                                               : gfx::kBraveGrey800};
+  mixer[kColorButtonForegroundChecked] = {kColorButtonForeground};
+  // For deprecated kColorId_TextOnProminentButtonColor
+  mixer[kColorButtonForegroundProminent] = {SK_ColorWHITE};
+
+  // --------------------------------------------------------------------------
+  // Label colors
+  // --------------------------------------------------------------------------
   // For deprecated kColorId_LabelEnabledColor
   mixer[kColorLabelForeground] = {kColorButtonForeground};
+
+  // --------------------------------------------------------------------------
+  // Link colors
+  // --------------------------------------------------------------------------
   // For deprecated kColorId_LinkEnabled & kColorId_LinkPressed
   mixer[kColorLinkForeground] = {dark_window ? gfx::kBraveColorOrange300
                                              : gfx::kBraveColorBrand};
   mixer[kColorLinkForegroundPressed] = {kColorLinkForeground};
+
+  // --------------------------------------------------------------------------
+  // Table colors (e.g. Task Manager)
+  // --------------------------------------------------------------------------
+  // For deprecated kColorId_TableSelectionBackgroundFocused and
+  // kColorId_TableSelectionBackgroundUnfocused (which were
+  // AlphaBlend(kColorId_ProminentButtonColor, kColorId_WindowBackground,
+  // SkAlpha{0x3C}))
+  mixer[kColorTableBackgroundSelectedFocused] =
+      AlphaBlend(gfx::kBraveColorBrand, kColorPrimaryBackground, 0x3C);
+  mixer[kColorTableBackgroundSelectedUnfocused] = {
+      kColorTableBackgroundSelectedFocused};
+  // For deprecated kColorId_TableGroupingIndicatorColor (which was the same as
+  // kColorId_FocusedBorderColor)
+  mixer[kColorTableGroupingIndicator] = {gfx::kBraveColorBrand};
+
+  // --------------------------------------------------------------------------
+  // Text colors
+  // --------------------------------------------------------------------------
   // For deprecated kColorId_TextfieldSelectionBackgroundFocused
   mixer[kColorTextfieldSelectionBackground] = {
       dark_window ? gfx::kGoogleBlue800 : gfx::kGoogleBlue200};