linux_aura: Use GTK button borders in GTK theme mode.

ui/views/controls/button/label_button.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/button/label_button.h"
 
 #include "base/logging.h"
 #include "grit/ui_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/animation/throb_animation.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/font_list.h"
 #include "ui/gfx/sys_color_change_listener.h"
 #include "ui/native_theme/native_theme.h"
 #include "ui/views/background.h"
 #include "ui/views/controls/button/label_button_border.h"
 #include "ui/views/painter.h"
 #include "ui/views/window/dialog_delegate.h"
 
+#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
+#include "ui/views/linux_ui/linux_ui.h"
+#endif
+
 namespace {
 
 // The spacing between the icon and text.
 const int kSpacing = 5;
 
 // Default text and shadow colors for STYLE_BUTTON.
 const SkColor kStyleButtonTextColor = SK_ColorBLACK;
 const SkColor kStyleButtonShadowColor = SK_ColorWHITE;
 
 }  // namespace
@@ skipping 118 matching lines @@
   }
   if (style == STYLE_BUTTON) {
     label_->SetHorizontalAlignment(gfx::ALIGN_CENTER);
     SetFocusable(true);
   }
   if (style == STYLE_BUTTON)
     set_min_size(gfx::Size(70, 33));
 
   ResetColorsFromNativeTheme();
 
-  // Set the border and invalidate the layout to pickup its new insets.
-  set_border(new LabelButtonBorder(style));
+  UpdateThemedBorder(new LabelButtonBorder(style_));
+
+  // Invalidate the layout to pickup the new insets from the border.
   InvalidateLayout();
 }
 
 void LabelButton::SetFocusPainter(scoped_ptr<Painter> focus_painter) {
   focus_painter_ = focus_painter.Pass();
 }
 
 gfx::Size LabelButton::GetPreferredSize() {
   // Use a temporary label copy for sizing to avoid calculation side-effects.
   const gfx::FontList& font_list = GetFontList();
@@ skipping 157 matching lines @@
       SetTextColor(static_cast<ButtonState>(state), colors[state]);
       explicitly_set_colors_[state] = false;
     }
   }
 }
 
 void LabelButton::UpdateImage() {
   image_->SetImage(GetImage(state()));
 }
 
+void LabelButton::UpdateThemedBorder(LabelButtonBorder* label_button_border) {
+#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
+  views::LinuxUI* linux_ui = views::LinuxUI::instance();
+  if (linux_ui) {
+    set_border(linux_ui->CreateNativeBorder(this, label_button_border));
+  } else
+#endif
+  {
+    set_border(label_button_border);
+  }
+}
+
 void LabelButton::StateChanged() {
   const gfx::Size previous_image_size(image_->GetPreferredSize());
   UpdateImage();
   const SkColor color = button_state_colors_[state()];
   if (state() != STATE_DISABLED && label_->enabled_color() != color)
     label_->SetEnabledColor(color);
   label_->SetEnabled(state() != STATE_DISABLED);
   if (image_->GetPreferredSize() != previous_image_size)
     Layout();
 }
@@ skipping 37 matching lines @@
   return ui::NativeTheme::kNormal;
 }
 
 ui::NativeTheme::State LabelButton::GetForegroundThemeState(
     ui::NativeTheme::ExtraParams* params) const {
   GetExtraParams(params);
   return ui::NativeTheme::kHovered;
 }
 
 }  // namespace views