Add textfield internal padding from FocusableBorder.

ui/views/controls/focusable_border.cc

 // Copyright (c) 2012 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 "ui/views/controls/focusable_border.h"
 
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/skia_util.h"
 #include "ui/native_theme/native_theme.h"
 
 namespace {
 
-// Define the size of the insets
+// The size of the insets and the stroke.
 const int kTopInsetSize = 4;
 const int kLeftInsetSize = 4;
 const int kBottomInsetSize = 4;
 const int kRightInsetSize = 4;
+const int kStrokeWidth = 2;
 
 }  // namespace
 
 namespace views {
 
 FocusableBorder::FocusableBorder()
     : insets_(kTopInsetSize, kLeftInsetSize,
               kBottomInsetSize, kRightInsetSize),
       override_color_(SK_ColorWHITE),
       use_default_color_(true) {
@@ skipping 14 matching lines @@
   SkPaint paint;
   paint.setStyle(SkPaint::kStroke_Style);
   SkColor color = override_color_;
   if (use_default_color_) {
     color = view.GetNativeTheme()->GetSystemColor(
         view.HasFocus() ? ui::NativeTheme::kColorId_FocusedBorderColor :
                           ui::NativeTheme::kColorId_UnfocusedBorderColor);
   }
 
   paint.setColor(color);
-  paint.setStrokeWidth(SkIntToScalar(2));
+  paint.setStrokeWidth(SkIntToScalar(kStrokeWidth));
 
   canvas->DrawPath(path, paint);
 }
 
 gfx::Insets FocusableBorder::GetInsets() const {
   return insets_;
 }
 
 gfx::Size FocusableBorder::GetMinimumSize() const {
-  return gfx::Size();
+  return gfx::Size(kStrokeWidth, kStrokeWidth);
 }
 
 void FocusableBorder::SetInsets(int top, int left, int bottom, int right) {
   insets_.Set(top, left, bottom, right);
 }
 
 }  // namespace views