Round the corners of bookmark button ink drop effects.

chrome/browser/ui/views/bookmarks/bookmark_bar_view.cc

Index: chrome/browser/ui/views/bookmarks/bookmark_bar_view.cc
diff --git a/chrome/browser/ui/views/bookmarks/bookmark_bar_view.cc b/chrome/browser/ui/views/bookmarks/bookmark_bar_view.cc
index ac5249a0234e2c45c06ea66a49c986d368fc8d48..ce37e63e3dbf78cae113307a1998cf5fb894aa80 100644
--- a/chrome/browser/ui/views/bookmarks/bookmark_bar_view.cc
+++ b/chrome/browser/ui/views/bookmarks/bookmark_bar_view.cc
@@ -90,6 +90,7 @@
 #include "ui/views/animation/flood_fill_ink_drop_ripple.h"
 #include "ui/views/animation/ink_drop_highlight.h"
 #include "ui/views/animation/ink_drop_impl.h"
+#include "ui/views/animation/ink_drop_mask.h"
 #include "ui/views/button_drag_utils.h"
 #include "ui/views/controls/button/label_button.h"
 #include "ui/views/controls/button/label_button_border.h"
@@ -121,6 +122,9 @@ static const int kNewTabHorizontalPadding = 2;
 // Maximum size of buttons on the bookmark bar.
 static const int kMaxButtonWidth = 150;
 
+// Corner radius for masking the ink drop effects on buttons.
+static const int kInkDropCornerRadius = 2;
+
 // Number of pixels the attached bookmark bar overlaps with the toolbar.
 static const int kToolbarAttachedBookmarkBarOverlap = 3;
 
@@ -242,6 +246,11 @@ class BookmarkButtonBase : public views::LabelButton {
         bounds.size(), 0, bounds.CenterPoint(), GetInkDropBaseColor());
   }
 
+  std::unique_ptr<views::InkDropMask> CreateInkDropMask() const override {
+    return base::MakeUnique<views::RoundRectInkDropMask>(size(), kInkDropInsets,
+                                                         kInkDropCornerRadius);
+  }
+
   SkColor GetInkDropBaseColor() const override {
     return GetThemeProvider()->GetColor(
         ThemeProperties::COLOR_TOOLBAR_BUTTON_ICON);
@@ -367,6 +376,11 @@ class BookmarkMenuButtonBase : public views::MenuButton {
         bounds.size(), 0, bounds.CenterPoint(), GetInkDropBaseColor());
   }
 
+  std::unique_ptr<views::InkDropMask> CreateInkDropMask() const override {
+    return base::MakeUnique<views::RoundRectInkDropMask>(size(), kInkDropInsets,
+                                                         kInkDropCornerRadius);
+  }
+
   SkColor GetInkDropBaseColor() const override {
     return GetThemeProvider()->GetColor(
         ThemeProperties::COLOR_TOOLBAR_BUTTON_ICON);