[ash-md] Updates ash shelf tooltips to MD

ui/views/bubble/bubble_frame_view.cc

Index: ui/views/bubble/bubble_frame_view.cc
diff --git a/ui/views/bubble/bubble_frame_view.cc b/ui/views/bubble/bubble_frame_view.cc
index a3f4bf162692ea328fba73cb584177d7518de1ba..60ae2cbc8c8bd884e09576436fe5ce6c695c54a5 100644
--- a/ui/views/bubble/bubble_frame_view.cc
+++ b/ui/views/bubble/bubble_frame_view.cc
@@ -172,21 +172,22 @@ int BubbleFrameView::NonClientHitTest(const gfx::Point& point) {
 
 void BubbleFrameView::GetWindowMask(const gfx::Size& size,
                                     gfx::Path* window_mask) {
+  const bool no_assets = bubble_border_->shadow() == BubbleBorder::NO_ASSETS ||
+      bubble_border_->shadow() == BubbleBorder::NO_ASSETS_TOOLTIP;
   if (bubble_border_->shadow() != BubbleBorder::SMALL_SHADOW &&
       bubble_border_->shadow() != BubbleBorder::NO_SHADOW_OPAQUE_BORDER &&
-      bubble_border_->shadow() != BubbleBorder::NO_ASSETS)
+      !no_assets)
     return;
 
   // We don't return a mask for windows with arrows unless they use
-  // BubbleBorder::NO_ASSETS.
-  if (bubble_border_->shadow() != BubbleBorder::NO_ASSETS &&
+  // BubbleBorder::NO_ASSETS or BubbleBorder::NO_ASSETS_TOOLTIP.
+  if (!no_assets &&
       bubble_border_->arrow() != BubbleBorder::NONE &&
       bubble_border_->arrow() != BubbleBorder::FLOAT)
     return;
 
   // Use a window mask roughly matching the border in the image assets.
-  const int kBorderStrokeSize =
-      bubble_border_->shadow() == BubbleBorder::NO_ASSETS ? 0 : 1;
+  const int kBorderStrokeSize = no_assets ? 0 : 1;
   const SkScalar kCornerRadius =
       SkIntToScalar(bubble_border_->GetBorderCornerRadius());
   const gfx::Insets border_insets = bubble_border_->GetInsets();
@@ -198,7 +199,7 @@ void BubbleFrameView::GetWindowMask(const gfx::Size& size,
                     kBorderStrokeSize)};
 
   if (bubble_border_->shadow() == BubbleBorder::NO_SHADOW_OPAQUE_BORDER ||
-      bubble_border_->shadow() == BubbleBorder::NO_ASSETS) {
+      no_assets) {
     window_mask->addRoundRect(rect, kCornerRadius, kCornerRadius);
   } else {
     static const int kBottomBorderShadowSize = 2;