Fix the appearance of Views BlueButtons with GTK theming.

ui/views/controls/button/blue_button.cc

 // Copyright 2013 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/button/blue_button.h"
 
 #include "grit/ui_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/sys_color_change_listener.h"
 #include "ui/views/controls/button/label_button_border.h"
 
 namespace {
 
 // Default text and shadow colors for the blue button.
 const SkColor kBlueButtonTextColor = SK_ColorWHITE;
 const SkColor kBlueButtonShadowColor = SkColorSetRGB(0x53, 0x8C, 0xEA);
 
 }  // namespace
 
 namespace views {
 
 // static
 const char BlueButton::kViewClassName[] = "views/BlueButton";
 
 BlueButton::BlueButton(ButtonListener* listener, const base::string16& text)
     : LabelButton(listener, text) {
   // Inherit STYLE_BUTTON insets, minimum size, alignment, etc.
   SetStyle(STYLE_BUTTON);
-  UpdateThemedBorder();
+  // Set the border explicitly, to avoid LinuxUI border theming.
+  SetBorder(CreateDefaultBorder().PassAs<Border>());
 }
 
 BlueButton::~BlueButton() {}
 
 void BlueButton::ResetColorsFromNativeTheme() {
   LabelButton::ResetColorsFromNativeTheme();
   if (!gfx::IsInvertedColorScheme()) {
     for (size_t state = STATE_NORMAL; state < STATE_COUNT; ++state)
       SetTextColor(static_cast<ButtonState>(state), kBlueButtonTextColor);
     label()->SetShadowColors(kBlueButtonShadowColor, kBlueButtonShadowColor);
@@ skipping 23 matching lines @@
   button_border->SetPainter(true, STATE_HOVERED, Painter::CreateImagePainter(
       *rb.GetImageSkiaNamed(IDR_BLUE_BUTTON_FOCUSED_HOVER), insets));
   button_border->SetPainter(true, STATE_PRESSED, Painter::CreateImagePainter(
       *rb.GetImageSkiaNamed(IDR_BLUE_BUTTON_FOCUSED_PRESSED), insets));
   button_border->SetPainter(true, STATE_DISABLED, Painter::CreateImagePainter(
       *rb.GetImageSkiaNamed(IDR_BLUE_BUTTON_DISABLED), insets));
   return button_border.Pass();
 }
 
 }  // namespace views