Use ink drop highlight for focus on arc intent picker buttons.

chrome/browser/ui/views/intent_picker_bubble_view.cc

Index: chrome/browser/ui/views/intent_picker_bubble_view.cc
diff --git a/chrome/browser/ui/views/intent_picker_bubble_view.cc b/chrome/browser/ui/views/intent_picker_bubble_view.cc
index 9632fbf6327da47678aaf2cedd7f037f5c05542f..22f1034fbea5cafdcb8747a84d80c9ec16724224 100644
--- a/chrome/browser/ui/views/intent_picker_bubble_view.cc
+++ b/chrome/browser/ui/views/intent_picker_bubble_view.cc
@@ -18,12 +18,14 @@
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/canvas.h"
 #include "ui/views/animation/ink_drop_host_view.h"
+#include "ui/views/animation/ink_drop_impl.h"
 #include "ui/views/border.h"
 #include "ui/views/controls/button/image_button.h"
 #include "ui/views/controls/scroll_view.h"
 #include "ui/views/controls/scrollbar/overlay_scroll_bar.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/layout/grid_layout.h"
+#include "ui/views/painter.h"
 #include "ui/views/window/dialog_client_view.h"
 
 namespace {
@@ -63,6 +65,7 @@ class IntentPickerLabelButton : public views::LabelButton {
     SetHorizontalAlignment(gfx::ALIGN_LEFT);
     SetMinSize(gfx::Size(kMaxWidth, kRowHeight));
     SetInkDropMode(InkDropMode::ON);
+    SetFocusPainter(nullptr);
     if (!icon->IsEmpty())
       SetImage(views::ImageButton::STATE_NORMAL, *icon->ToImageSkia());
     SetBorder(views::CreateEmptyBorder(10, 16, 10, 0));
@@ -84,6 +87,14 @@ class IntentPickerLabelButton : public views::LabelButton {
     return GetInkDrop()->GetTargetInkDropState();
   }
 
+  // LabelButton:
+  std::unique_ptr<views::InkDrop> CreateInkDrop() override {
+    std::unique_ptr<views::InkDropImpl> ink_drop =
+        CreateDefaultFloodFillInkDropImpl();
+    ink_drop->SetShowHighlightOnFocus(true);
+    return std::move(ink_drop);
+  }
+
  private:
   std::string package_name_;