Render remove and append buttons in the correct color.

Bug: 941516
Change-Id: If61199c999f6018d4993eaa2bd6c1fb02006845a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1611870Reviewed-by: Alex Newcomer <newcomer@chromium.org>
Commit-Queue: Jenny Zhang <jennyz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#659702}

chrome/browser/ui/app_list/search/omnibox_result.cc

@@ -34,8 +34,6 @@ namespace {
 // #000 at 87% opacity.
 constexpr SkColor kListIconColor = SkColorSetARGB(0xDE, 0x00, 0x00, 0x00);
 
-constexpr SkColor kImageButtonColor = gfx::kGoogleGrey700;
-
 int ACMatchStyleToTagStyle(int styles) {
   int tag_styles = 0;
   if (styles & ACMatchClassification::URL)
@@ -299,14 +297,14 @@ void OmniboxResult::SetZeroSuggestionActions() {
     switch (button_action) {
       case ash::OmniBoxZeroStateAction::kRemoveSuggestion:
         button_image = gfx::CreateVectorIcon(
-            kSearchResultRemoveIcon, kImageButtonIconSize, kImageButtonColor);
+            kSearchResultRemoveIcon, kImageButtonIconSize, kListIconColor);
         button_tooltip = l10n_util::GetStringFUTF16(
             IDS_APP_LIST_REMOVE_SUGGESTION_ACCESSIBILITY_NAME, title());
         visible_on_hover = true;  // visible upon hovering
         break;
       case ash::OmniBoxZeroStateAction::kAppendSuggestion:
         button_image = gfx::CreateVectorIcon(
-            kSearchResultAppendIcon, kImageButtonIconSize, kImageButtonColor);
+            kSearchResultAppendIcon, kImageButtonIconSize, kListIconColor);
         button_tooltip = l10n_util::GetStringFUTF16(
             IDS_APP_LIST_APPEND_SUGGESTION_ACCESSIBILITY_NAME, title());
         visible_on_hover = false;  // always visible