Update bookmark bar folder icons to MD; vectorize.

chrome/browser/ui/bookmarks/bookmark_utils.cc

Index: chrome/browser/ui/bookmarks/bookmark_utils.cc
diff --git a/chrome/browser/ui/bookmarks/bookmark_utils.cc b/chrome/browser/ui/bookmarks/bookmark_utils.cc
index 9d7fca293c94720ba513c3e37fe714354fe00438..759bc0e511e0f654d63a3153bbeb97aec99b2abd 100644
--- a/chrome/browser/ui/bookmarks/bookmark_utils.cc
+++ b/chrome/browser/ui/bookmarks/bookmark_utils.cc
@@ -38,6 +38,13 @@
 #include "extensions/common/extension_set.h"
 #endif
 
+#if !defined(OS_MACOSX) && !defined(OS_ANDROID)
+#include "ui/gfx/paint_vector_icon.h"
+#include "ui/gfx/vector_icons_public.h"
+#include "ui/native_theme/common_theme.h"
+#include "ui/native_theme/native_theme.h"
+#endif
+
 using bookmarks::BookmarkModel;
 using bookmarks::BookmarkNode;
 
@@ -197,6 +204,15 @@ BookmarkShortcutDisposition GetBookmarkShortcutDisposition(Profile* profile) {
   return BOOKMARK_SHORTCUT_DISPOSITION_UNCHANGED;
 }
 
+#if !defined(OS_MACOSX) && !defined(OS_ANDROID)
+gfx::ImageSkia GetFolderIcon(gfx::VectorIconId id) {
+  SkColor icon_color;
+  ui::CommonThemeGetSystemColor(ui::NativeTheme::kColorId_ChromeIconGrey,
+                                &icon_color);
+  return gfx::CreateVectorIcon(id, 16, icon_color);
+}
+#endif
+
 }  // namespace
 
 void OpenAll(gfx::NativeWindow parent,
@@ -481,4 +497,18 @@ bool IsValidBookmarkDropLocation(Profile* profile,
   return true;
 }
 
+#if !defined(OS_MACOSX) && !defined(OS_ANDROID)
+gfx::ImageSkia GetBookmarkFolderIcon() {
+  return GetFolderIcon(gfx::VectorIconId::FOLDER);
+}
+
+gfx::ImageSkia GetBookmarkSupervisedFolderIcon() {
+  return GetFolderIcon(gfx::VectorIconId::FOLDER_SUPERVISED);
+}
+
+gfx::ImageSkia GetBookmarkManagedFolderIcon() {
+  return GetFolderIcon(gfx::VectorIconId::FOLDER_MANAGED);
+}
+#endif
+
 }  // namespace chrome