Updates to shelf icons for Ash material design

ash/common/system/web_notification/web_notification_tray.cc

Index: ash/common/system/web_notification/web_notification_tray.cc
diff --git a/ash/common/system/web_notification/web_notification_tray.cc b/ash/common/system/web_notification/web_notification_tray.cc
index fd478d7e85cc96dd8841088add0f8886e3ed2b90..2ec903799009145bce17ad4350e2296082b16e07 100644
--- a/ash/common/system/web_notification/web_notification_tray.cc
+++ b/ash/common/system/web_notification/web_notification_tray.cc
@@ -21,6 +21,7 @@
 #include "ash/common/wm_root_window_controller.h"
 #include "ash/common/wm_shell.h"
 #include "ash/common/wm_window.h"
+#include "ash/resources/vector_icons/vector_icons.h"
 #include "base/auto_reset.h"
 #include "base/i18n/number_formatting.h"
 #include "base/i18n/rtl.h"
@@ -68,7 +69,7 @@ constexpr int kEnableQuietModeDay = 2;
 constexpr int kMaximumSmallIconCount = 3;
 
 constexpr gfx::Size kTrayItemInnerIconSize(16, 16);
-constexpr gfx::Size kTrayItemInnerBellIconSize(18, 18);
+constexpr gfx::Size kTrayItemInnerBellIconSizeNonMd(18, 18);
 constexpr gfx::Size kTrayItemOuterSize(26, 26);
 constexpr gfx::Insets kTrayItemInsets(3, 3);
 
@@ -306,17 +307,15 @@ WebNotificationTray::WebNotificationTray(WmShelf* shelf,
   DCHECK(status_area_window_);
   DCHECK(system_tray_);
 
-  gfx::ImageSkia bell_image;
-  if (MaterialDesignController::IsShelfMaterial()) {
-    bell_image = CreateVectorIcon(gfx::VectorIconId::SHELF_NOTIFICATIONS,
-                                  kShelfIconColor);
-  } else {
-    bell_image =
-        CreateVectorIcon(gfx::VectorIconId::NOTIFICATIONS, kNoUnreadIconSize,
-                         kWebNotificationColorNoUnread);
-  }
-  bell_icon_.reset(new WebNotificationImage(bell_image,
-                                            kTrayItemInnerBellIconSize,
+  const bool md_shelf = MaterialDesignController::IsShelfMaterial();
+  gfx::ImageSkia bell_image =
+      md_shelf
+          ? CreateVectorIcon(kShelfNotificationsIcon, kShelfIconColor)
+          : CreateVectorIcon(gfx::VectorIconId::NOTIFICATIONS,
+                             kNoUnreadIconSize, kWebNotificationColorNoUnread);
+  const gfx::Size bell_icon_size =
+      md_shelf ? kTrayItemInnerIconSize : kTrayItemInnerBellIconSizeNonMd;
+  bell_icon_.reset(new WebNotificationImage(bell_image, bell_icon_size,
                                             animation_container_.get(), this));
   tray_container()->AddChildView(bell_icon_.get());