use the right NativeTheme on bubbles + dialogs on Aura Linux

ui/views/linux_ui/linux_ui.h

 // 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.
 
 #ifndef UI_VIEWS_LINUX_UI_LINUX_UI_H_
 #define UI_VIEWS_LINUX_UI_LINUX_UI_H_
 
 #include <string>
 
+#include "base/callback.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/base/ime/linux/linux_input_method_context_factory.h"
 #include "ui/events/linux/text_edit_key_bindings_delegate_auralinux.h"
 #include "ui/gfx/linux_font_delegate.h"
 #include "ui/shell_dialogs/linux_shell_dialog.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/linux_ui/status_icon_linux.h"
 #include "ui/views/views_export.h"
 
 // The main entrypoint into Linux toolkit specific code. GTK code should only
 // be executed behind this interface.
 
+namespace aura {
+class Window;
+}
+
 namespace gfx {
 class Image;
 }
 
 namespace ui {
 class NativeTheme;
 }
 
 namespace views {
 class Border;
@@ skipping 16 matching lines @@
  public:
   // Describes the window management actions that could be taken in response to
   // a middle click in the non client area.
   enum NonClientMiddleClickAction {
     MIDDLE_CLICK_ACTION_NONE,
     MIDDLE_CLICK_ACTION_LOWER,
     MIDDLE_CLICK_ACTION_MINIMIZE,
     MIDDLE_CLICK_ACTION_TOGGLE_MAXIMIZE
   };
 
+  typedef base::Callback<ui::NativeTheme*(aura::Window* window)>
+      NativeThemeGetter;
+
   virtual ~LinuxUI() {}
 
   // Sets the dynamically loaded singleton that draws the desktop native UI.
   static void SetInstance(LinuxUI* instance);
 
   // Returns a LinuxUI instance for the toolkit used in the user's desktop
   // environment.
   //
   // Can return NULL, in case no toolkit has been set. (For example, if we're
   // running with the "--ash" flag.)
@@ skipping 12 matching lines @@
   virtual SkColor GetThumbInactiveColor() const = 0;
   virtual SkColor GetTrackColor() const = 0;
   virtual SkColor GetActiveSelectionBgColor() const = 0;
   virtual SkColor GetActiveSelectionFgColor() const = 0;
   virtual SkColor GetInactiveSelectionBgColor() const = 0;
   virtual SkColor GetInactiveSelectionFgColor() const = 0;
   virtual double GetCursorBlinkInterval() const = 0;
 
   // Returns a NativeTheme that will provide system colors and draw system
   // style widgets.
-  virtual ui::NativeTheme* GetNativeTheme() const = 0;
+  virtual ui::NativeTheme* GetNativeTheme(aura::Window* window) const = 0;
+
+  // Used to set an override NativeTheme.
+  virtual void SetNativeThemeOverride(const NativeThemeGetter& callback) = 0;
 
   // Returns whether we should be using the native theme provided by this
   // object by default.
   virtual bool GetDefaultUsesSystemTheme() const = 0;
 
   // Sets visual properties in the desktop environment related to download
   // progress, if available.
   virtual void SetDownloadCount(int count) const = 0;
   virtual void SetProgressFraction(float percentage) const = 0;
 
@@ skipping 42 matching lines @@
   // Notifies the window manager that start up has completed.
   // Normally Chromium opens a new window on startup and GTK does this
   // automatically. In case Chromium does not open a new window on startup,
   // e.g. an existing browser window already exists, this should be called.
   virtual void NotifyWindowManagerStartupComplete() = 0;
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_LINUX_UI_LINUX_UI_H_