Inset anchor rect for tab hover cards.

Bug: 910739
Change-Id: I25bf423759ac715279954cc4a24023ae808404fe
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1600455
Commit-Queue: Caroline Rising <corising@chromium.org>
Reviewed-by: Dana Fried <dfried@chromium.org>
Cr-Commit-Position: refs/heads/master@{#657523}

chrome/browser/ui/views/tabs/tab_hover_card_bubble_view.cc

@@ -211,6 +211,7 @@ class TabHoverCardBubbleView::WidgetSlideAnimationDelegate
   void AnimateToAnchorView(views::View* anchor_view) {
     anchor_view_ = anchor_view;
     gfx::Rect anchor_bounds = anchor_view->GetAnchorBoundsInScreen();
+    anchor_bounds.Inset(bubble_delegate_->anchor_view_insets());
 
     // If an animation is currently running we should start the next animation
     // from where the previous left off.
@@ -257,6 +258,10 @@ TabHoverCardBubbleView::TabHoverCardBubbleView(Tab* tab)
   // view inside the client view.
   set_margins(gfx::Insets());
 
+  // Inset the tab hover cards anchor rect to bring the card closer to the tab.
+  constexpr gfx::Insets kTabHoverCardAnchorInsets(2, 0);
+  set_anchor_view_insets(kTabHoverCardAnchorInsets);
+
   // Set so that when hovering over a tab in a inactive window that window will
   // not become active. Setting this to false creates the need to explicitly
   // hide the hovercard on press, touch, and keyboard events.