Magnifier border is now more visible on light backgrounds.

ash/common/system/chromeos/palette/palette_tray.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/common/system/chromeos/palette/palette_tray.h"
 
 #include "ash/common/shelf/shelf_constants.h"
 #include "ash/common/shelf/wm_shelf.h"
 #include "ash/common/shelf/wm_shelf_util.h"
 #include "ash/common/shell_window_ids.h"
@@ skipping 25 matching lines @@
 // Predefined padding for the icon used in this tray. These are to be set to the
 // border of the icon, depending on the current |shelf_alignment()|.
 const int kHorizontalShelfHorizontalPadding = 8;
 const int kHorizontalShelfVerticalPadding = 4;
 const int kVerticalShelfHorizontalPadding = 2;
 const int kVerticalShelfVerticalPadding = 5;
 
 // Width of the palette itself (dp).
 const int kPaletteWidth = 360;
 
+// Size of icon in the shelf (dp).
+const int kShelfIconSize = 18;
+
 // Creates a separator.
 views::Separator* CreateSeparator(views::Separator::Orientation orientation) {
   const int kSeparatorInset = 10;
 
   views::Separator* separator =
       new views::Separator(views::Separator::HORIZONTAL);
   separator->SetColor(ash::kBorderDarkColor);
   separator->SetBorder(
       views::Border::CreateEmptyBorder(kSeparatorInset, 0, kSeparatorInset, 0));
   return separator;
@@ skipping 242 matching lines @@
         kHorizontalShelfVerticalPadding, kHorizontalShelfHorizontalPadding)));
   } else {
     icon_->SetBorder(views::Border::CreateEmptyBorder(gfx::Insets(
         kVerticalShelfVerticalPadding, kVerticalShelfHorizontalPadding)));
   }
 }
 
 void PaletteTray::UpdateTrayIcon() {
   gfx::VectorIconId icon = palette_tool_manager_->GetActiveTrayIcon(
       palette_tool_manager_->GetActiveTool(ash::PaletteGroup::MODE));
-  icon_->SetImage(CreateVectorIcon(icon, kShelfIconColor));
+  icon_->SetImage(CreateVectorIcon(icon, kShelfIconSize, kShelfIconColor));
 }
 
 void PaletteTray::UpdateIconVisibility() {
   if (!IsPaletteEnabled())
     return;
 
   SessionStateDelegate* session_state_delegate =
       WmShell::Get()->GetSessionStateDelegate();
 
   SetVisible(!session_state_delegate->IsScreenLocked() &&
              session_state_delegate->GetSessionState() ==
                  SessionStateDelegate::SESSION_STATE_ACTIVE &&
              WmShell::Get()->system_tray_delegate()->GetUserLoginStatus() !=
                  LoginStatus::KIOSK_APP);
 }
 
 }  // namespace ash